Chilling water in copper vesselDoes citric acid react with carbonated water?Copper and hydrochloric acidwhat is the reaction between copper and an acidWhy do you need to convert copper (II) hydroxide to copper (II) oxide before converting to copper (II) sulfate?If capsaicin is insoluble in water, what makes chilli water taste spicy?Dissolution of protein powder in waterHexanoic acid and copper/brass - toxicity?Why does salty water make hard boiled egg shells more fragile?Acidic tendency of copper(II) ion vs. calcium(II) ionChanges over time in sodium hydroxide concentration in a hot water bath used for pretzel manufacture
What is the difference between logical consistency and logical entailment in deductive logic?
Identifying Lithuanian coordinate system?
Who Can Help Retag This?
Does Google Maps take into account hills/inclines for route times?
Was adding milk to tea started to reduce employee tea break time?
Are there any double stars that I can actually see orbit each other?
Why does the autopilot disengage even when it does not receive pilot input?
Can I intentionally omit previous work experience or pretend it doesn't exist when applying for jobs?
Redirect https to fqdn
Why does resistance reduce when a conductive fabric is stretched?
Are randomly-generated passwords starting with "a" less secure?
diff shows a file that does not exist
Steampunk helicopter
As the Dungeon Master, how do I handle a player that insists on a specific class when I already know that choice will cause issues?
How can I deal with a player trying to insert real-world mythology into my homebrew setting?
Is Trump personally blocking people on Twitter?
Filtering fine silt/mud from water (not necessarily bacteria etc.)
What can the U.S. government do to prevent powerful people to get extremely favorable plea bargain deals like Jeff Epstein?
Why did the Japanese attack the Aleutians at the same time as Midway?
Is purchasing foreign currency before going abroad a losing proposition?
Extract an attribute value from XML
What would be the ideal melee weapon made of "Phase Metal"?
Grammy Winners Grading
Why did my rum cake turn black?
Chilling water in copper vessel
Does citric acid react with carbonated water?Copper and hydrochloric acidwhat is the reaction between copper and an acidWhy do you need to convert copper (II) hydroxide to copper (II) oxide before converting to copper (II) sulfate?If capsaicin is insoluble in water, what makes chilli water taste spicy?Dissolution of protein powder in waterHexanoic acid and copper/brass - toxicity?Why does salty water make hard boiled egg shells more fragile?Acidic tendency of copper(II) ion vs. calcium(II) ionChanges over time in sodium hydroxide concentration in a hot water bath used for pretzel manufacture
.everyoneloves__top-leaderboard:empty,.everyoneloves__mid-leaderboard:empty,.everyoneloves__bot-mid-leaderboard:empty margin-bottom:0;
$begingroup$
Does chilling drinking water in copper bottle result in any chemical reaction that turns it dangerous for consumption in any way?
Few days back, in summer, I carried kokum juice in copper bottle. I had a sip of it after some time when I reached office and I felt super dizzy. I felt that traveling might have an effect on me, so I stopped. I had another sip of juice after some hours I had a strong dizzy feeling. At first, the juice tasted ok but then it started tasting very very weird. When I reached home and poured the juice back out of the bottle, to my surprise, its green! The normal color of kokum juice is pinkish-reddish. So somehow copper reacted with the juice and possible resulted in some acid, even though it was at normal room temperature (or in fact cold one as the juice was prepared from cold water). I believe there shouldn't be an issue with cooling water in a copper bottle in the fridge, I just want to know if there is any slight drawback, maybe from Ayurveda point of view? Also, I hope you get the chemistry angle to this question.
acid-base food-chemistry toxicity
asked Jul 4 at 7:56
Mahesha999Mahesha999
1646 bronze badges
$endgroup$
add a comment |
$begingroup$
Does chilling drinking water in copper bottle result in any chemical reaction that turns it dangerous for consumption in any way?
Few days back, in summer, I carried kokum juice in copper bottle. I had a sip of it after some time when I reached office and I felt super dizzy. I felt that traveling might have an effect on me, so I stopped. I had another sip of juice after some hours I had a strong dizzy feeling. At first, the juice tasted ok but then it started tasting very very weird. When I reached home and poured the juice back out of the bottle, to my surprise, its green! The normal color of kokum juice is pinkish-reddish. So somehow copper reacted with the juice and possible resulted in some acid, even though it was at normal room temperature (or in fact cold one as the juice was prepared from cold water). I believe there shouldn't be an issue with cooling water in a copper bottle in the fridge, I just want to know if there is any slight drawback, maybe from Ayurveda point of view? Also, I hope you get the chemistry angle to this question.
acid-base food-chemistry toxicity
asked Jul 4 at 7:56
Mahesha999Mahesha999
1646 bronze badges
$endgroup$
1
$begingroup$
Kokam is sour (probably acidic; something to do with the reaction). Water is neutral.
$endgroup$
– Eashaan Godbole
Jul 4 at 13:29
2
$begingroup$
Are you asking about storing water in a copper vessel or storing a (likely weakly acidic) juice in a copper vessel? The two are not equivalent.
$endgroup$
– Eric Towers
Jul 4 at 16:45
$begingroup$
The title ( water ) does not match the post ( juice ).
$endgroup$
– Poutnik
Jul 6 at 11:26
$begingroup$
Title earlier was (mistakenly) "juice" (since I had juice experience in my mind right from the starting of writing the question as wanted to tell you that). Now I have already changed it to "water". Since beginning, the post was always: "will it do any harm with water? I know its harmful with juice at normal temperature, but want to know what happens with water at lower temperature." Anyways, responses here are super enlightening. Thanks for all the knowledge. Dont know which answer to accept.
$endgroup$
– Mahesha999
Jul 6 at 12:11
$begingroup$
Then the proper way would be, at the beginning, to remove minor parts with water , putting them to a different question.
$endgroup$
– Poutnik
Jul 7 at 5:20
add a comment |
$begingroup$
Does chilling drinking water in copper bottle result in any chemical reaction that turns it dangerous for consumption in any way?
Few days back, in summer, I carried kokum juice in copper bottle. I had a sip of it after some time when I reached office and I felt super dizzy. I felt that traveling might have an effect on me, so I stopped. I had another sip of juice after some hours I had a strong dizzy feeling. At first, the juice tasted ok but then it started tasting very very weird. When I reached home and poured the juice back out of the bottle, to my surprise, its green! The normal color of kokum juice is pinkish-reddish. So somehow copper reacted with the juice and possible resulted in some acid, even though it was at normal room temperature (or in fact cold one as the juice was prepared from cold water). I believe there shouldn't be an issue with cooling water in a copper bottle in the fridge, I just want to know if there is any slight drawback, maybe from Ayurveda point of view? Also, I hope you get the chemistry angle to this question.
acid-base food-chemistry toxicity
asked Jul 4 at 7:56
Mahesha999Mahesha999
1646 bronze badges
$endgroup$
Does chilling drinking water in copper bottle result in any chemical reaction that turns it dangerous for consumption in any way?
Few days back, in summer, I carried kokum juice in copper bottle. I had a sip of it after some time when I reached office and I felt super dizzy. I felt that traveling might have an effect on me, so I stopped. I had another sip of juice after some hours I had a strong dizzy feeling. At first, the juice tasted ok but then it started tasting very very weird. When I reached home and poured the juice back out of the bottle, to my surprise, its green! The normal color of kokum juice is pinkish-reddish. So somehow copper reacted with the juice and possible resulted in some acid, even though it was at normal room temperature (or in fact cold one as the juice was prepared from cold water). I believe there shouldn't be an issue with cooling water in a copper bottle in the fridge, I just want to know if there is any slight drawback, maybe from Ayurveda point of view? Also, I hope you get the chemistry angle to this question.
acid-base food-chemistry toxicity
acid-base food-chemistry toxicity
asked Jul 4 at 7:56
Mahesha999Mahesha999
1646 bronze badges
asked Jul 4 at 7:56
Mahesha999Mahesha999
1646 bronze badges
edited Jul 6 at 8:35
Mahesha999
asked Jul 4 at 7:56
Mahesha999Mahesha999
1646 bronze badges
asked Jul 4 at 7:56
Mahesha999Mahesha999
1646 bronze badges
asked Jul 4 at 7:56
Mahesha999Mahesha999
1646 bronze badges
1646 bronze badges
1
$begingroup$
Kokam is sour (probably acidic; something to do with the reaction). Water is neutral.
$endgroup$
– Eashaan Godbole
Jul 4 at 13:29
2
$begingroup$
Are you asking about storing water in a copper vessel or storing a (likely weakly acidic) juice in a copper vessel? The two are not equivalent.
$endgroup$
– Eric Towers
Jul 4 at 16:45
$begingroup$
The title ( water ) does not match the post ( juice ).
$endgroup$
– Poutnik
Jul 6 at 11:26
$begingroup$
Title earlier was (mistakenly) "juice" (since I had juice experience in my mind right from the starting of writing the question as wanted to tell you that). Now I have already changed it to "water". Since beginning, the post was always: "will it do any harm with water? I know its harmful with juice at normal temperature, but want to know what happens with water at lower temperature." Anyways, responses here are super enlightening. Thanks for all the knowledge. Dont know which answer to accept.
$endgroup$
– Mahesha999
Jul 6 at 12:11
$begingroup$
Then the proper way would be, at the beginning, to remove minor parts with water , putting them to a different question.
$endgroup$
– Poutnik
Jul 7 at 5:20
add a comment |
1
$begingroup$
Kokam is sour (probably acidic; something to do with the reaction). Water is neutral.
$endgroup$
– Eashaan Godbole
Jul 4 at 13:29
2
$begingroup$
Are you asking about storing water in a copper vessel or storing a (likely weakly acidic) juice in a copper vessel? The two are not equivalent.
$endgroup$
– Eric Towers
Jul 4 at 16:45
$begingroup$
The title ( water ) does not match the post ( juice ).
$endgroup$
– Poutnik
Jul 6 at 11:26
$begingroup$
Title earlier was (mistakenly) "juice" (since I had juice experience in my mind right from the starting of writing the question as wanted to tell you that). Now I have already changed it to "water". Since beginning, the post was always: "will it do any harm with water? I know its harmful with juice at normal temperature, but want to know what happens with water at lower temperature." Anyways, responses here are super enlightening. Thanks for all the knowledge. Dont know which answer to accept.
$endgroup$
– Mahesha999
Jul 6 at 12:11
$begingroup$
Then the proper way would be, at the beginning, to remove minor parts with water , putting them to a different question.
$endgroup$
– Poutnik
Jul 7 at 5:20
1
1
$begingroup$
Kokam is sour (probably acidic; something to do with the reaction). Water is neutral.
$endgroup$
– Eashaan Godbole
Jul 4 at 13:29
$begingroup$
Kokam is sour (probably acidic; something to do with the reaction). Water is neutral.
$endgroup$
– Eashaan Godbole
Jul 4 at 13:29
2
2
$begingroup$
Are you asking about storing water in a copper vessel or storing a (likely weakly acidic) juice in a copper vessel? The two are not equivalent.
$endgroup$
– Eric Towers
Jul 4 at 16:45
$begingroup$
Are you asking about storing water in a copper vessel or storing a (likely weakly acidic) juice in a copper vessel? The two are not equivalent.
$endgroup$
– Eric Towers
Jul 4 at 16:45
$begingroup$
The title ( water ) does not match the post ( juice ).
$endgroup$
– Poutnik
Jul 6 at 11:26
$begingroup$
The title ( water ) does not match the post ( juice ).
$endgroup$
– Poutnik
Jul 6 at 11:26
$begingroup$
Title earlier was (mistakenly) "juice" (since I had juice experience in my mind right from the starting of writing the question as wanted to tell you that). Now I have already changed it to "water". Since beginning, the post was always: "will it do any harm with water? I know its harmful with juice at normal temperature, but want to know what happens with water at lower temperature." Anyways, responses here are super enlightening. Thanks for all the knowledge. Dont know which answer to accept.
$endgroup$
– Mahesha999
Jul 6 at 12:11
$begingroup$
Title earlier was (mistakenly) "juice" (since I had juice experience in my mind right from the starting of writing the question as wanted to tell you that). Now I have already changed it to "water". Since beginning, the post was always: "will it do any harm with water? I know its harmful with juice at normal temperature, but want to know what happens with water at lower temperature." Anyways, responses here are super enlightening. Thanks for all the knowledge. Dont know which answer to accept.
$endgroup$
– Mahesha999
Jul 6 at 12:11
$begingroup$
Then the proper way would be, at the beginning, to remove minor parts with water , putting them to a different question.
$endgroup$
– Poutnik
Jul 7 at 5:20
$begingroup$
Then the proper way would be, at the beginning, to remove minor parts with water , putting them to a different question.
$endgroup$
– Poutnik
Jul 7 at 5:20
add a comment |
3 Answers
3
active
oldest
votes
$begingroup$
Do not do it !! ( putting acidic, or rather any juice to copper bottles )
You are in danger of copper poisoning.
Generally, by food processing laws, copper is not allowed to be in direct contact with food, as there is danger of copper contamination.
Especially acidic liquids, like vinegar or citrus juices, directly slowly dissolve copper in presence of oxygen.
$$ce4 RCOOH + 2 Cu + O2 -> 2 (RCOO)2Cu + 2 H2O$$
Note that cold liquids contain usually more oxygen than warm ones.
For similar reasons, even if there is not copper, it is very bad idea to keep the content of conserved fruit cans in the already opened cans. You can otherwise see the juice corroding the can inner coating in air presence.
Soluble copper salts are usually blueish/greenish what with yellow/orange colour of juice gives green colour.
Long term usage of copper for keeping water is on the edge. It can cause chronical low dose sneaky poisoning, especially if water is treated by chlorine.
$$ceCu + Cl2 -> Cu^2+ + 2 Cl-$$
Oxidation can lead to partially soluble basic copper carbonates, soluble by traces of organic acids, related to minerals malachite and azurite.
$$ce2 Cu + CO2 + O2 + H2O -> CuCO3 cdot Cu(OH)2$$
$$ce3 Cu + 2 CO2 + 3/2 O2 + H2O -> 2 CuCO3 cdot Cu(OH)2$$
Plus, there is danger some people would want to store there other liquids than water as well, as the OP.
answered Jul 4 at 8:28
PoutnikPoutnik
4,0601 gold badge6 silver badges22 bronze badges
$endgroup$
3
$begingroup$
Biochemistry discourages copper for long term use.
$endgroup$
– Poutnik
Jul 4 at 9:09
$begingroup$
Yesss that link also discourages copper for long term use and asks to give a pause of a month after three months of usage.
$endgroup$
– Mahesha999
Jul 4 at 9:14
5
$begingroup$
Long term usage can cause chronical low dose sneaky poisoning, but if Ayurveda recommends it....
$endgroup$
– Poutnik
Jul 4 at 9:19
1
$begingroup$
Are you saying that the copper pipes in my water service are "sneaky poisoning" me?
$endgroup$
– trognanders
Jul 4 at 19:11
2
$begingroup$
@Mahesha99 The more unrelated benefits that something is claimed to have, the more skeptical you should be about the claims. Anything claimed to "stimulate brain function, promote digestion, improve fertility" is almost certainly snake oil and, in this, case probably actively bad for you.
$endgroup$
– WaterMolecule
Jul 5 at 17:22
|
show 2 more comments
$begingroup$
This is in reply to the following comment.
but if Ayurveda recommends it.... – Poutnik
The following abstract is from Journal Health Popul Nutr. 2012 Mar; 30(1): 17–21."Storing Drinking-water in Copper pots Kills Contaminating Diarrhoeagenic Bacteria" by V.B. Preethi Sudha, Sheeba Ganesan,G.P. Pazhani, T. Ramamurthy, G.B. Nair and Padma Venkatasubramanian.
Microbially-unsafe water is still a major concern in most developing countries. Although many water-purification methods exist, these are expensive and beyond the reach of many people, especially in rural areas. Ayurveda recommends the use of copper for storing drinking-water. Therefore, the objective of this study was to evaluate the effect of copper pot on microbially-contaminated drinking-water**. The antibacterial effect of copper pot against important diarrhoeagenic bacteria, including Vibrio cholerae O1, Shigella flexneri 2a, enterotoxigenic Escherichia coli, enteropathogenic E. coli, Salmonella enterica Typhi, and Salmonella Paratyphi is reported. When drinking-water (pH 7.83±0.4; source: ground) was contaminated with 500 CFU/mL of the above bacteria and stored in copper pots for 16 hours at room temperature, no bacteria could be recovered on the culture medium. Recovery failed even after resuscitation in enrichment broth, followed by plating on selective media, indicating loss of culturability. This is the first report on the effect of copper on S. flexneri 2a, enteropathogenic E. coli, and Salmonella Paratyphi. After 16 hours, there was a slight increase in the pH of water from 7.83 to 7.93 in the copper pots while the other physicochemical parameters remained unchanged. Copper content (177±16 ppb) in water stored in copper pots was well within the permissible limits of the World Health Organization. Copper holds promise as a point-of-use solution for microbial purification of drinking-water, especially in developing countries.
The paper has tabulated results of Antibacterial activity of copper pot and also Physical and chemical parameters in a copper pot as shown below.
Antibacterial activity of copper pot on drinking-water inoculated with enteric pathogens.
The level of copper that had leached into the test samples was 177±16 ppb which was well within the WHO limit of 2000 ppb in the test samples (copper pot) after incubation for 16 hours .
Discussion as per the paper.
None of the test pathogens was recovered from drinking-water stored in copper pots even after enrichment culture.
The level of copper leached in the former is far less (177±16 ppb) than that in distilled water (~420 ppb).
Safety of leached copper does not appear to be an issue since studies have shown that the current WHO guideline of 2 mg Cu/L is safe , and the levels leached in the study were 1/20th of the permissible limits.
It has been observed in the present study that the other physicochemical parameters of drinking-water remain unchanged after copper intervention, which makes them amenable for public use.
Since ancient times Ayurveda has advocated the benefits of drinking water from a copper vessel.
Scientifically speaking$^1$,
when water is stored in a copper vessel for over eight hours, very small quantities of copper get dissolved in this water. This process is called “oligodynamic effect” and has the ability to destroy a wide range of harmful microbes, molds, fungi etc. due to the toxic effect it has on living cells.
The oligodynamic effect $^2$,
(from Greek oligos "few", and dynamis "force") is a biocidal effect of metals, especially heavy metals, that occurs even in low concentrations. The health effect was known in India for more than 2700 years as their ancient texts prescribe.
In conclusion,Ayurvedic system$^4$ of medicine has great antiquity, dating back to about 5000 years B.C. Its Materia Medica contain resources in the form of drugs derived from plant, animal, metal and mineral sources.Ayurveda system prescribes dose in limits and not in excess.
References
$^1$https://saiayurvediccollege.com/ayurveda-benefits-of-drinking-from-a-copper-vessel/
$^2$https://en.wikipedia.org/wiki/Oligodynamic_effect
$^3$https://saiayurvediccollege.com/ayurveda-benefits-of-drinking-from-a-copper-vessel/
$^4$https://saiayurvediccollege.com/ayurveda-benefits-of-drinking-from-a-copper-vessel/
answered Jul 4 at 12:46
Chakravarthy KalyanChakravarthy Kalyan
2,5975 silver badges23 bronze badges
$endgroup$
$begingroup$
Not harmful even if I drink always from copper vessel? We were doing this for more than a decade. Now that our copper vessel is broken, we have stopped it. I am guessing what damage it might have caused us. Any history of any harm that copper might have caused over prolonged use?
$endgroup$
– Mahesha999
Jul 4 at 13:36
$begingroup$
I have not objected against copper antimicrobial activity. I am also well aware copper is essential element in small doses.
$endgroup$
– Poutnik
Jul 4 at 15:05
3
$begingroup$
Note that medical advices are explicitly off topic on Chemistry SE.
$endgroup$
– Poutnik
Jul 5 at 4:01
$begingroup$
The above answer is in reply to effect of Cu content in water by AYURVEDA wich talks about moderation as presented in a paper.That said ,doctors advice is the best.
$endgroup$
– Chakravarthy Kalyan
Jul 5 at 4:25
4
$begingroup$
This was a good answer until I got to the "Ayurvedic system" discussion. Copper deficiency is rare, so most people are unlikely to "reap the benefits". Any copper supplementation should probably be taken under consultation with a reputable doctor.
$endgroup$
– WaterMolecule
Jul 5 at 17:26
|
show 4 more comments
$begingroup$
There are two parts of your question. We should not mix historical medical practices with modern scientific truths. Also, this does not mean that all old medical knowledge is bad or useless. In older medicine, gold foil arsenic compounds, silver foil, crushed pearls and mercury oxides were added in medicines,. It does not mean that if these practices were done in ages ago, they are safe by today's standards.
- Is it okay to store kokum juice in copper vessels?
For western readers, kokum juice is a berry juice (Garcinia indica), which is rich in hydroxycitric acid.
Acids in Garcinia indica. The berry is quite sour. A layman can do a quick test. Take a copper vessel and store this berry juice for half an hour. Immediately you will see discoloration and a "brand" new shiny copper surface. I have seen that on a copper cup. This implies that a significant amount of copper has dissolved. We should not store acidic juices in copper vessels.
Secondly, in older times water was not chlorinated. Chloride ions corrode copper so quickly. Add some lemon juice, salt, to a copper cup and it will corrode soon to a green color.
However, it is very much true that in older South Asian culture, copper and tin lined pots and pans were used. The coating would wash away with cooking and people would re-coat them. Aluminum took their place. Finally stainless steel came in.
Regarding storing natural water in a copper vessel, it should be fine for a shorter time (day or so). Silver vessel is a better as an anti-bacterial surface and far more inert than copper. However, nobody is rich enough to use silver (or to be born with a silver spoon as they say). Yes silverware is good for the kings and queens.
Copper is a long term liver toxin. It is also a trace essential element.
You know the Goldilock principle: Everything in moderation. Too little copper in the body, bad. Too much copper-liver damage. You just need the right amount of copper.
.
answered Jul 6 at 2:43
M. FarooqM. Farooq
4,4705 silver badges19 bronze badges
$endgroup$
add a comment |
Your Answer
StackExchange.ready(function()
var channelOptions =
tags: "".split(" "),
id: "431"
;
initTagRenderer("".split(" "), "".split(" "), channelOptions);
StackExchange.using("externalEditor", function()
// Have to fire editor after snippets, if snippets enabled
if (StackExchange.settings.snippets.snippetsEnabled)
StackExchange.using("snippets", function()
createEditor();
);
else
createEditor();
);
function createEditor()
StackExchange.prepareEditor(
heartbeatType: 'answer',
autoActivateHeartbeat: false,
convertImagesToLinks: false,
noModals: true,
showLowRepImageUploadWarning: true,
reputationToPostImages: null,
bindNavPrevention: true,
postfix: "",
imageUploader:
brandingHtml: "Powered by u003ca class="icon-imgur-white" href="https://imgur.com/"u003eu003c/au003e",
contentPolicyHtml: "User contributions licensed under u003ca href="https://creativecommons.org/licenses/by-sa/3.0/"u003ecc by-sa 3.0 with attribution requiredu003c/au003e u003ca href="https://stackoverflow.com/legal/content-policy"u003e(content policy)u003c/au003e",
allowUrls: true
,
onDemand: true,
discardSelector: ".discard-answer"
,immediatelyShowMarkdownHelp:true
);
);
Sign up or log in
StackExchange.ready(function ()
StackExchange.helpers.onClickDraftSave('#login-link');
);
Sign up using Google
Sign up using Facebook
Sign up using Email and Password
Post as a guest
Required, but never shown
StackExchange.ready(
function ()
StackExchange.openid.initPostLogin('.new-post-login', 'https%3a%2f%2fchemistry.stackexchange.com%2fquestions%2f117666%2fchilling-water-in-copper-vessel%23new-answer', 'question_page');
);
Post as a guest
Required, but never shown
3 Answers
3
active
oldest
votes
3 Answers
3
active
oldest
votes
active
oldest
votes
active
oldest
votes
$begingroup$
Do not do it !! ( putting acidic, or rather any juice to copper bottles )
You are in danger of copper poisoning.
Generally, by food processing laws, copper is not allowed to be in direct contact with food, as there is danger of copper contamination.
Especially acidic liquids, like vinegar or citrus juices, directly slowly dissolve copper in presence of oxygen.
$$ce4 RCOOH + 2 Cu + O2 -> 2 (RCOO)2Cu + 2 H2O$$
Note that cold liquids contain usually more oxygen than warm ones.
For similar reasons, even if there is not copper, it is very bad idea to keep the content of conserved fruit cans in the already opened cans. You can otherwise see the juice corroding the can inner coating in air presence.
Soluble copper salts are usually blueish/greenish what with yellow/orange colour of juice gives green colour.
Long term usage of copper for keeping water is on the edge. It can cause chronical low dose sneaky poisoning, especially if water is treated by chlorine.
$$ceCu + Cl2 -> Cu^2+ + 2 Cl-$$
Oxidation can lead to partially soluble basic copper carbonates, soluble by traces of organic acids, related to minerals malachite and azurite.
$$ce2 Cu + CO2 + O2 + H2O -> CuCO3 cdot Cu(OH)2$$
$$ce3 Cu + 2 CO2 + 3/2 O2 + H2O -> 2 CuCO3 cdot Cu(OH)2$$
Plus, there is danger some people would want to store there other liquids than water as well, as the OP.
answered Jul 4 at 8:28
PoutnikPoutnik
4,0601 gold badge6 silver badges22 bronze badges
$endgroup$
3
$begingroup$
Biochemistry discourages copper for long term use.
$endgroup$
– Poutnik
Jul 4 at 9:09
$begingroup$
Yesss that link also discourages copper for long term use and asks to give a pause of a month after three months of usage.
$endgroup$
– Mahesha999
Jul 4 at 9:14
5
$begingroup$
Long term usage can cause chronical low dose sneaky poisoning, but if Ayurveda recommends it....
$endgroup$
– Poutnik
Jul 4 at 9:19
1
$begingroup$
Are you saying that the copper pipes in my water service are "sneaky poisoning" me?
$endgroup$
– trognanders
Jul 4 at 19:11
2
$begingroup$
@Mahesha99 The more unrelated benefits that something is claimed to have, the more skeptical you should be about the claims. Anything claimed to "stimulate brain function, promote digestion, improve fertility" is almost certainly snake oil and, in this, case probably actively bad for you.
$endgroup$
– WaterMolecule
Jul 5 at 17:22
|
show 2 more comments
$begingroup$
Do not do it !! ( putting acidic, or rather any juice to copper bottles )
You are in danger of copper poisoning.
Generally, by food processing laws, copper is not allowed to be in direct contact with food, as there is danger of copper contamination.
Especially acidic liquids, like vinegar or citrus juices, directly slowly dissolve copper in presence of oxygen.
$$ce4 RCOOH + 2 Cu + O2 -> 2 (RCOO)2Cu + 2 H2O$$
Note that cold liquids contain usually more oxygen than warm ones.
For similar reasons, even if there is not copper, it is very bad idea to keep the content of conserved fruit cans in the already opened cans. You can otherwise see the juice corroding the can inner coating in air presence.
Soluble copper salts are usually blueish/greenish what with yellow/orange colour of juice gives green colour.
Long term usage of copper for keeping water is on the edge. It can cause chronical low dose sneaky poisoning, especially if water is treated by chlorine.
$$ceCu + Cl2 -> Cu^2+ + 2 Cl-$$
Oxidation can lead to partially soluble basic copper carbonates, soluble by traces of organic acids, related to minerals malachite and azurite.
$$ce2 Cu + CO2 + O2 + H2O -> CuCO3 cdot Cu(OH)2$$
$$ce3 Cu + 2 CO2 + 3/2 O2 + H2O -> 2 CuCO3 cdot Cu(OH)2$$
Plus, there is danger some people would want to store there other liquids than water as well, as the OP.
answered Jul 4 at 8:28
PoutnikPoutnik
4,0601 gold badge6 silver badges22 bronze badges
$endgroup$
3
$begingroup$
Biochemistry discourages copper for long term use.
$endgroup$
– Poutnik
Jul 4 at 9:09
$begingroup$
Yesss that link also discourages copper for long term use and asks to give a pause of a month after three months of usage.
$endgroup$
– Mahesha999
Jul 4 at 9:14
5
$begingroup$
Long term usage can cause chronical low dose sneaky poisoning, but if Ayurveda recommends it....
$endgroup$
– Poutnik
Jul 4 at 9:19
1
$begingroup$
Are you saying that the copper pipes in my water service are "sneaky poisoning" me?
$endgroup$
– trognanders
Jul 4 at 19:11
2
$begingroup$
@Mahesha99 The more unrelated benefits that something is claimed to have, the more skeptical you should be about the claims. Anything claimed to "stimulate brain function, promote digestion, improve fertility" is almost certainly snake oil and, in this, case probably actively bad for you.
$endgroup$
– WaterMolecule
Jul 5 at 17:22
|
show 2 more comments
$begingroup$
Do not do it !! ( putting acidic, or rather any juice to copper bottles )
You are in danger of copper poisoning.
Generally, by food processing laws, copper is not allowed to be in direct contact with food, as there is danger of copper contamination.
Especially acidic liquids, like vinegar or citrus juices, directly slowly dissolve copper in presence of oxygen.
$$ce4 RCOOH + 2 Cu + O2 -> 2 (RCOO)2Cu + 2 H2O$$
Note that cold liquids contain usually more oxygen than warm ones.
For similar reasons, even if there is not copper, it is very bad idea to keep the content of conserved fruit cans in the already opened cans. You can otherwise see the juice corroding the can inner coating in air presence.
Soluble copper salts are usually blueish/greenish what with yellow/orange colour of juice gives green colour.
Long term usage of copper for keeping water is on the edge. It can cause chronical low dose sneaky poisoning, especially if water is treated by chlorine.
$$ceCu + Cl2 -> Cu^2+ + 2 Cl-$$
Oxidation can lead to partially soluble basic copper carbonates, soluble by traces of organic acids, related to minerals malachite and azurite.
$$ce2 Cu + CO2 + O2 + H2O -> CuCO3 cdot Cu(OH)2$$
$$ce3 Cu + 2 CO2 + 3/2 O2 + H2O -> 2 CuCO3 cdot Cu(OH)2$$
Plus, there is danger some people would want to store there other liquids than water as well, as the OP.
answered Jul 4 at 8:28
PoutnikPoutnik
4,0601 gold badge6 silver badges22 bronze badges
$endgroup$
Do not do it !! ( putting acidic, or rather any juice to copper bottles )
You are in danger of copper poisoning.
Generally, by food processing laws, copper is not allowed to be in direct contact with food, as there is danger of copper contamination.
Especially acidic liquids, like vinegar or citrus juices, directly slowly dissolve copper in presence of oxygen.
$$ce4 RCOOH + 2 Cu + O2 -> 2 (RCOO)2Cu + 2 H2O$$
Note that cold liquids contain usually more oxygen than warm ones.
For similar reasons, even if there is not copper, it is very bad idea to keep the content of conserved fruit cans in the already opened cans. You can otherwise see the juice corroding the can inner coating in air presence.
Soluble copper salts are usually blueish/greenish what with yellow/orange colour of juice gives green colour.
Long term usage of copper for keeping water is on the edge. It can cause chronical low dose sneaky poisoning, especially if water is treated by chlorine.
$$ceCu + Cl2 -> Cu^2+ + 2 Cl-$$
Oxidation can lead to partially soluble basic copper carbonates, soluble by traces of organic acids, related to minerals malachite and azurite.
$$ce2 Cu + CO2 + O2 + H2O -> CuCO3 cdot Cu(OH)2$$
$$ce3 Cu + 2 CO2 + 3/2 O2 + H2O -> 2 CuCO3 cdot Cu(OH)2$$
Plus, there is danger some people would want to store there other liquids than water as well, as the OP.
answered Jul 4 at 8:28
PoutnikPoutnik
4,0601 gold badge6 silver badges22 bronze badges
edited Jul 5 at 5:57
answered Jul 4 at 8:28
PoutnikPoutnik
4,0601 gold badge6 silver badges22 bronze badges
answered Jul 4 at 8:28
PoutnikPoutnik
4,0601 gold badge6 silver badges22 bronze badges
answered Jul 4 at 8:28
PoutnikPoutnik
4,0601 gold badge6 silver badges22 bronze badges
4,0601 gold badge6 silver badges22 bronze badges
3
$begingroup$
Biochemistry discourages copper for long term use.
$endgroup$
– Poutnik
Jul 4 at 9:09
$begingroup$
Yesss that link also discourages copper for long term use and asks to give a pause of a month after three months of usage.
$endgroup$
– Mahesha999
Jul 4 at 9:14
5
$begingroup$
Long term usage can cause chronical low dose sneaky poisoning, but if Ayurveda recommends it....
$endgroup$
– Poutnik
Jul 4 at 9:19
1
$begingroup$
Are you saying that the copper pipes in my water service are "sneaky poisoning" me?
$endgroup$
– trognanders
Jul 4 at 19:11
2
$begingroup$
@Mahesha99 The more unrelated benefits that something is claimed to have, the more skeptical you should be about the claims. Anything claimed to "stimulate brain function, promote digestion, improve fertility" is almost certainly snake oil and, in this, case probably actively bad for you.
$endgroup$
– WaterMolecule
Jul 5 at 17:22
|
show 2 more comments
3
$begingroup$
Biochemistry discourages copper for long term use.
$endgroup$
– Poutnik
Jul 4 at 9:09
$begingroup$
Yesss that link also discourages copper for long term use and asks to give a pause of a month after three months of usage.
$endgroup$
– Mahesha999
Jul 4 at 9:14
5
$begingroup$
Long term usage can cause chronical low dose sneaky poisoning, but if Ayurveda recommends it....
$endgroup$
– Poutnik
Jul 4 at 9:19
1
$begingroup$
Are you saying that the copper pipes in my water service are "sneaky poisoning" me?
$endgroup$
– trognanders
Jul 4 at 19:11
2
$begingroup$
@Mahesha99 The more unrelated benefits that something is claimed to have, the more skeptical you should be about the claims. Anything claimed to "stimulate brain function, promote digestion, improve fertility" is almost certainly snake oil and, in this, case probably actively bad for you.
$endgroup$
– WaterMolecule
Jul 5 at 17:22
3
3
$begingroup$
Biochemistry discourages copper for long term use.
$endgroup$
– Poutnik
Jul 4 at 9:09
$begingroup$
Biochemistry discourages copper for long term use.
$endgroup$
– Poutnik
Jul 4 at 9:09
$begingroup$
Yesss that link also discourages copper for long term use and asks to give a pause of a month after three months of usage.
$endgroup$
– Mahesha999
Jul 4 at 9:14
$begingroup$
Yesss that link also discourages copper for long term use and asks to give a pause of a month after three months of usage.
$endgroup$
– Mahesha999
Jul 4 at 9:14
5
5
$begingroup$
Long term usage can cause chronical low dose sneaky poisoning, but if Ayurveda recommends it....
$endgroup$
– Poutnik
Jul 4 at 9:19
$begingroup$
Long term usage can cause chronical low dose sneaky poisoning, but if Ayurveda recommends it....
$endgroup$
– Poutnik
Jul 4 at 9:19
1
1
$begingroup$
Are you saying that the copper pipes in my water service are "sneaky poisoning" me?
$endgroup$
– trognanders
Jul 4 at 19:11
$begingroup$
Are you saying that the copper pipes in my water service are "sneaky poisoning" me?
$endgroup$
– trognanders
Jul 4 at 19:11
2
2
$begingroup$
@Mahesha99 The more unrelated benefits that something is claimed to have, the more skeptical you should be about the claims. Anything claimed to "stimulate brain function, promote digestion, improve fertility" is almost certainly snake oil and, in this, case probably actively bad for you.
$endgroup$
– WaterMolecule
Jul 5 at 17:22
$begingroup$
@Mahesha99 The more unrelated benefits that something is claimed to have, the more skeptical you should be about the claims. Anything claimed to "stimulate brain function, promote digestion, improve fertility" is almost certainly snake oil and, in this, case probably actively bad for you.
$endgroup$
– WaterMolecule
Jul 5 at 17:22
|
show 2 more comments
$begingroup$
This is in reply to the following comment.
but if Ayurveda recommends it.... – Poutnik
The following abstract is from Journal Health Popul Nutr. 2012 Mar; 30(1): 17–21."Storing Drinking-water in Copper pots Kills Contaminating Diarrhoeagenic Bacteria" by V.B. Preethi Sudha, Sheeba Ganesan,G.P. Pazhani, T. Ramamurthy, G.B. Nair and Padma Venkatasubramanian.
Microbially-unsafe water is still a major concern in most developing countries. Although many water-purification methods exist, these are expensive and beyond the reach of many people, especially in rural areas. Ayurveda recommends the use of copper for storing drinking-water. Therefore, the objective of this study was to evaluate the effect of copper pot on microbially-contaminated drinking-water**. The antibacterial effect of copper pot against important diarrhoeagenic bacteria, including Vibrio cholerae O1, Shigella flexneri 2a, enterotoxigenic Escherichia coli, enteropathogenic E. coli, Salmonella enterica Typhi, and Salmonella Paratyphi is reported. When drinking-water (pH 7.83±0.4; source: ground) was contaminated with 500 CFU/mL of the above bacteria and stored in copper pots for 16 hours at room temperature, no bacteria could be recovered on the culture medium. Recovery failed even after resuscitation in enrichment broth, followed by plating on selective media, indicating loss of culturability. This is the first report on the effect of copper on S. flexneri 2a, enteropathogenic E. coli, and Salmonella Paratyphi. After 16 hours, there was a slight increase in the pH of water from 7.83 to 7.93 in the copper pots while the other physicochemical parameters remained unchanged. Copper content (177±16 ppb) in water stored in copper pots was well within the permissible limits of the World Health Organization. Copper holds promise as a point-of-use solution for microbial purification of drinking-water, especially in developing countries.
The paper has tabulated results of Antibacterial activity of copper pot and also Physical and chemical parameters in a copper pot as shown below.
Antibacterial activity of copper pot on drinking-water inoculated with enteric pathogens.
The level of copper that had leached into the test samples was 177±16 ppb which was well within the WHO limit of 2000 ppb in the test samples (copper pot) after incubation for 16 hours .
Discussion as per the paper.
None of the test pathogens was recovered from drinking-water stored in copper pots even after enrichment culture.
The level of copper leached in the former is far less (177±16 ppb) than that in distilled water (~420 ppb).
Safety of leached copper does not appear to be an issue since studies have shown that the current WHO guideline of 2 mg Cu/L is safe , and the levels leached in the study were 1/20th of the permissible limits.
It has been observed in the present study that the other physicochemical parameters of drinking-water remain unchanged after copper intervention, which makes them amenable for public use.
Since ancient times Ayurveda has advocated the benefits of drinking water from a copper vessel.
Scientifically speaking$^1$,
when water is stored in a copper vessel for over eight hours, very small quantities of copper get dissolved in this water. This process is called “oligodynamic effect” and has the ability to destroy a wide range of harmful microbes, molds, fungi etc. due to the toxic effect it has on living cells.
The oligodynamic effect $^2$,
(from Greek oligos "few", and dynamis "force") is a biocidal effect of metals, especially heavy metals, that occurs even in low concentrations. The health effect was known in India for more than 2700 years as their ancient texts prescribe.
In conclusion,Ayurvedic system$^4$ of medicine has great antiquity, dating back to about 5000 years B.C. Its Materia Medica contain resources in the form of drugs derived from plant, animal, metal and mineral sources.Ayurveda system prescribes dose in limits and not in excess.
References
$^1$https://saiayurvediccollege.com/ayurveda-benefits-of-drinking-from-a-copper-vessel/
$^2$https://en.wikipedia.org/wiki/Oligodynamic_effect
$^3$https://saiayurvediccollege.com/ayurveda-benefits-of-drinking-from-a-copper-vessel/
$^4$https://saiayurvediccollege.com/ayurveda-benefits-of-drinking-from-a-copper-vessel/
answered Jul 4 at 12:46
Chakravarthy KalyanChakravarthy Kalyan
2,5975 silver badges23 bronze badges
$endgroup$
$begingroup$
Not harmful even if I drink always from copper vessel? We were doing this for more than a decade. Now that our copper vessel is broken, we have stopped it. I am guessing what damage it might have caused us. Any history of any harm that copper might have caused over prolonged use?
$endgroup$
– Mahesha999
Jul 4 at 13:36
$begingroup$
I have not objected against copper antimicrobial activity. I am also well aware copper is essential element in small doses.
$endgroup$
– Poutnik
Jul 4 at 15:05
3
$begingroup$
Note that medical advices are explicitly off topic on Chemistry SE.
$endgroup$
– Poutnik
Jul 5 at 4:01
$begingroup$
The above answer is in reply to effect of Cu content in water by AYURVEDA wich talks about moderation as presented in a paper.That said ,doctors advice is the best.
$endgroup$
– Chakravarthy Kalyan
Jul 5 at 4:25
4
$begingroup$
This was a good answer until I got to the "Ayurvedic system" discussion. Copper deficiency is rare, so most people are unlikely to "reap the benefits". Any copper supplementation should probably be taken under consultation with a reputable doctor.
$endgroup$
– WaterMolecule
Jul 5 at 17:26
|
show 4 more comments
$begingroup$
This is in reply to the following comment.
but if Ayurveda recommends it.... – Poutnik
The following abstract is from Journal Health Popul Nutr. 2012 Mar; 30(1): 17–21."Storing Drinking-water in Copper pots Kills Contaminating Diarrhoeagenic Bacteria" by V.B. Preethi Sudha, Sheeba Ganesan,G.P. Pazhani, T. Ramamurthy, G.B. Nair and Padma Venkatasubramanian.
Microbially-unsafe water is still a major concern in most developing countries. Although many water-purification methods exist, these are expensive and beyond the reach of many people, especially in rural areas. Ayurveda recommends the use of copper for storing drinking-water. Therefore, the objective of this study was to evaluate the effect of copper pot on microbially-contaminated drinking-water**. The antibacterial effect of copper pot against important diarrhoeagenic bacteria, including Vibrio cholerae O1, Shigella flexneri 2a, enterotoxigenic Escherichia coli, enteropathogenic E. coli, Salmonella enterica Typhi, and Salmonella Paratyphi is reported. When drinking-water (pH 7.83±0.4; source: ground) was contaminated with 500 CFU/mL of the above bacteria and stored in copper pots for 16 hours at room temperature, no bacteria could be recovered on the culture medium. Recovery failed even after resuscitation in enrichment broth, followed by plating on selective media, indicating loss of culturability. This is the first report on the effect of copper on S. flexneri 2a, enteropathogenic E. coli, and Salmonella Paratyphi. After 16 hours, there was a slight increase in the pH of water from 7.83 to 7.93 in the copper pots while the other physicochemical parameters remained unchanged. Copper content (177±16 ppb) in water stored in copper pots was well within the permissible limits of the World Health Organization. Copper holds promise as a point-of-use solution for microbial purification of drinking-water, especially in developing countries.
The paper has tabulated results of Antibacterial activity of copper pot and also Physical and chemical parameters in a copper pot as shown below.
Antibacterial activity of copper pot on drinking-water inoculated with enteric pathogens.
The level of copper that had leached into the test samples was 177±16 ppb which was well within the WHO limit of 2000 ppb in the test samples (copper pot) after incubation for 16 hours .
Discussion as per the paper.
None of the test pathogens was recovered from drinking-water stored in copper pots even after enrichment culture.
The level of copper leached in the former is far less (177±16 ppb) than that in distilled water (~420 ppb).
Safety of leached copper does not appear to be an issue since studies have shown that the current WHO guideline of 2 mg Cu/L is safe , and the levels leached in the study were 1/20th of the permissible limits.
It has been observed in the present study that the other physicochemical parameters of drinking-water remain unchanged after copper intervention, which makes them amenable for public use.
Since ancient times Ayurveda has advocated the benefits of drinking water from a copper vessel.
Scientifically speaking$^1$,
when water is stored in a copper vessel for over eight hours, very small quantities of copper get dissolved in this water. This process is called “oligodynamic effect” and has the ability to destroy a wide range of harmful microbes, molds, fungi etc. due to the toxic effect it has on living cells.
The oligodynamic effect $^2$,
(from Greek oligos "few", and dynamis "force") is a biocidal effect of metals, especially heavy metals, that occurs even in low concentrations. The health effect was known in India for more than 2700 years as their ancient texts prescribe.
In conclusion,Ayurvedic system$^4$ of medicine has great antiquity, dating back to about 5000 years B.C. Its Materia Medica contain resources in the form of drugs derived from plant, animal, metal and mineral sources.Ayurveda system prescribes dose in limits and not in excess.
References
$^1$https://saiayurvediccollege.com/ayurveda-benefits-of-drinking-from-a-copper-vessel/
$^2$https://en.wikipedia.org/wiki/Oligodynamic_effect
$^3$https://saiayurvediccollege.com/ayurveda-benefits-of-drinking-from-a-copper-vessel/
$^4$https://saiayurvediccollege.com/ayurveda-benefits-of-drinking-from-a-copper-vessel/
answered Jul 4 at 12:46
Chakravarthy KalyanChakravarthy Kalyan
2,5975 silver badges23 bronze badges
$endgroup$
$begingroup$
Not harmful even if I drink always from copper vessel? We were doing this for more than a decade. Now that our copper vessel is broken, we have stopped it. I am guessing what damage it might have caused us. Any history of any harm that copper might have caused over prolonged use?
$endgroup$
– Mahesha999
Jul 4 at 13:36
$begingroup$
I have not objected against copper antimicrobial activity. I am also well aware copper is essential element in small doses.
$endgroup$
– Poutnik
Jul 4 at 15:05
3
$begingroup$
Note that medical advices are explicitly off topic on Chemistry SE.
$endgroup$
– Poutnik
Jul 5 at 4:01
$begingroup$
The above answer is in reply to effect of Cu content in water by AYURVEDA wich talks about moderation as presented in a paper.That said ,doctors advice is the best.
$endgroup$
– Chakravarthy Kalyan
Jul 5 at 4:25
4
$begingroup$
This was a good answer until I got to the "Ayurvedic system" discussion. Copper deficiency is rare, so most people are unlikely to "reap the benefits". Any copper supplementation should probably be taken under consultation with a reputable doctor.
$endgroup$
– WaterMolecule
Jul 5 at 17:26
|
show 4 more comments
$begingroup$
This is in reply to the following comment.
but if Ayurveda recommends it.... – Poutnik
The following abstract is from Journal Health Popul Nutr. 2012 Mar; 30(1): 17–21."Storing Drinking-water in Copper pots Kills Contaminating Diarrhoeagenic Bacteria" by V.B. Preethi Sudha, Sheeba Ganesan,G.P. Pazhani, T. Ramamurthy, G.B. Nair and Padma Venkatasubramanian.
Microbially-unsafe water is still a major concern in most developing countries. Although many water-purification methods exist, these are expensive and beyond the reach of many people, especially in rural areas. Ayurveda recommends the use of copper for storing drinking-water. Therefore, the objective of this study was to evaluate the effect of copper pot on microbially-contaminated drinking-water**. The antibacterial effect of copper pot against important diarrhoeagenic bacteria, including Vibrio cholerae O1, Shigella flexneri 2a, enterotoxigenic Escherichia coli, enteropathogenic E. coli, Salmonella enterica Typhi, and Salmonella Paratyphi is reported. When drinking-water (pH 7.83±0.4; source: ground) was contaminated with 500 CFU/mL of the above bacteria and stored in copper pots for 16 hours at room temperature, no bacteria could be recovered on the culture medium. Recovery failed even after resuscitation in enrichment broth, followed by plating on selective media, indicating loss of culturability. This is the first report on the effect of copper on S. flexneri 2a, enteropathogenic E. coli, and Salmonella Paratyphi. After 16 hours, there was a slight increase in the pH of water from 7.83 to 7.93 in the copper pots while the other physicochemical parameters remained unchanged. Copper content (177±16 ppb) in water stored in copper pots was well within the permissible limits of the World Health Organization. Copper holds promise as a point-of-use solution for microbial purification of drinking-water, especially in developing countries.
The paper has tabulated results of Antibacterial activity of copper pot and also Physical and chemical parameters in a copper pot as shown below.
Antibacterial activity of copper pot on drinking-water inoculated with enteric pathogens.
The level of copper that had leached into the test samples was 177±16 ppb which was well within the WHO limit of 2000 ppb in the test samples (copper pot) after incubation for 16 hours .
Discussion as per the paper.
None of the test pathogens was recovered from drinking-water stored in copper pots even after enrichment culture.
The level of copper leached in the former is far less (177±16 ppb) than that in distilled water (~420 ppb).
Safety of leached copper does not appear to be an issue since studies have shown that the current WHO guideline of 2 mg Cu/L is safe , and the levels leached in the study were 1/20th of the permissible limits.
It has been observed in the present study that the other physicochemical parameters of drinking-water remain unchanged after copper intervention, which makes them amenable for public use.
Since ancient times Ayurveda has advocated the benefits of drinking water from a copper vessel.
Scientifically speaking$^1$,
when water is stored in a copper vessel for over eight hours, very small quantities of copper get dissolved in this water. This process is called “oligodynamic effect” and has the ability to destroy a wide range of harmful microbes, molds, fungi etc. due to the toxic effect it has on living cells.
The oligodynamic effect $^2$,
(from Greek oligos "few", and dynamis "force") is a biocidal effect of metals, especially heavy metals, that occurs even in low concentrations. The health effect was known in India for more than 2700 years as their ancient texts prescribe.
In conclusion,Ayurvedic system$^4$ of medicine has great antiquity, dating back to about 5000 years B.C. Its Materia Medica contain resources in the form of drugs derived from plant, animal, metal and mineral sources.Ayurveda system prescribes dose in limits and not in excess.
References
$^1$https://saiayurvediccollege.com/ayurveda-benefits-of-drinking-from-a-copper-vessel/
$^2$https://en.wikipedia.org/wiki/Oligodynamic_effect
$^3$https://saiayurvediccollege.com/ayurveda-benefits-of-drinking-from-a-copper-vessel/
$^4$https://saiayurvediccollege.com/ayurveda-benefits-of-drinking-from-a-copper-vessel/
answered Jul 4 at 12:46
Chakravarthy KalyanChakravarthy Kalyan
2,5975 silver badges23 bronze badges
$endgroup$
This is in reply to the following comment.
but if Ayurveda recommends it.... – Poutnik
The following abstract is from Journal Health Popul Nutr. 2012 Mar; 30(1): 17–21."Storing Drinking-water in Copper pots Kills Contaminating Diarrhoeagenic Bacteria" by V.B. Preethi Sudha, Sheeba Ganesan,G.P. Pazhani, T. Ramamurthy, G.B. Nair and Padma Venkatasubramanian.
Microbially-unsafe water is still a major concern in most developing countries. Although many water-purification methods exist, these are expensive and beyond the reach of many people, especially in rural areas. Ayurveda recommends the use of copper for storing drinking-water. Therefore, the objective of this study was to evaluate the effect of copper pot on microbially-contaminated drinking-water**. The antibacterial effect of copper pot against important diarrhoeagenic bacteria, including Vibrio cholerae O1, Shigella flexneri 2a, enterotoxigenic Escherichia coli, enteropathogenic E. coli, Salmonella enterica Typhi, and Salmonella Paratyphi is reported. When drinking-water (pH 7.83±0.4; source: ground) was contaminated with 500 CFU/mL of the above bacteria and stored in copper pots for 16 hours at room temperature, no bacteria could be recovered on the culture medium. Recovery failed even after resuscitation in enrichment broth, followed by plating on selective media, indicating loss of culturability. This is the first report on the effect of copper on S. flexneri 2a, enteropathogenic E. coli, and Salmonella Paratyphi. After 16 hours, there was a slight increase in the pH of water from 7.83 to 7.93 in the copper pots while the other physicochemical parameters remained unchanged. Copper content (177±16 ppb) in water stored in copper pots was well within the permissible limits of the World Health Organization. Copper holds promise as a point-of-use solution for microbial purification of drinking-water, especially in developing countries.
The paper has tabulated results of Antibacterial activity of copper pot and also Physical and chemical parameters in a copper pot as shown below.
Antibacterial activity of copper pot on drinking-water inoculated with enteric pathogens.
The level of copper that had leached into the test samples was 177±16 ppb which was well within the WHO limit of 2000 ppb in the test samples (copper pot) after incubation for 16 hours .
Discussion as per the paper.
None of the test pathogens was recovered from drinking-water stored in copper pots even after enrichment culture.
The level of copper leached in the former is far less (177±16 ppb) than that in distilled water (~420 ppb).
Safety of leached copper does not appear to be an issue since studies have shown that the current WHO guideline of 2 mg Cu/L is safe , and the levels leached in the study were 1/20th of the permissible limits.
It has been observed in the present study that the other physicochemical parameters of drinking-water remain unchanged after copper intervention, which makes them amenable for public use.
Since ancient times Ayurveda has advocated the benefits of drinking water from a copper vessel.
Scientifically speaking$^1$,
when water is stored in a copper vessel for over eight hours, very small quantities of copper get dissolved in this water. This process is called “oligodynamic effect” and has the ability to destroy a wide range of harmful microbes, molds, fungi etc. due to the toxic effect it has on living cells.
The oligodynamic effect $^2$,
(from Greek oligos "few", and dynamis "force") is a biocidal effect of metals, especially heavy metals, that occurs even in low concentrations. The health effect was known in India for more than 2700 years as their ancient texts prescribe.
In conclusion,Ayurvedic system$^4$ of medicine has great antiquity, dating back to about 5000 years B.C. Its Materia Medica contain resources in the form of drugs derived from plant, animal, metal and mineral sources.Ayurveda system prescribes dose in limits and not in excess.
References
$^1$https://saiayurvediccollege.com/ayurveda-benefits-of-drinking-from-a-copper-vessel/
$^2$https://en.wikipedia.org/wiki/Oligodynamic_effect
$^3$https://saiayurvediccollege.com/ayurveda-benefits-of-drinking-from-a-copper-vessel/
$^4$https://saiayurvediccollege.com/ayurveda-benefits-of-drinking-from-a-copper-vessel/
answered Jul 4 at 12:46
Chakravarthy KalyanChakravarthy Kalyan
2,5975 silver badges23 bronze badges
edited Jul 6 at 13:41
answered Jul 4 at 12:46
Chakravarthy KalyanChakravarthy Kalyan
2,5975 silver badges23 bronze badges
answered Jul 4 at 12:46
Chakravarthy KalyanChakravarthy Kalyan
2,5975 silver badges23 bronze badges
answered Jul 4 at 12:46
Chakravarthy KalyanChakravarthy Kalyan
2,5975 silver badges23 bronze badges
2,5975 silver badges23 bronze badges
$begingroup$
Not harmful even if I drink always from copper vessel? We were doing this for more than a decade. Now that our copper vessel is broken, we have stopped it. I am guessing what damage it might have caused us. Any history of any harm that copper might have caused over prolonged use?
$endgroup$
– Mahesha999
Jul 4 at 13:36
$begingroup$
I have not objected against copper antimicrobial activity. I am also well aware copper is essential element in small doses.
$endgroup$
– Poutnik
Jul 4 at 15:05
3
$begingroup$
Note that medical advices are explicitly off topic on Chemistry SE.
$endgroup$
– Poutnik
Jul 5 at 4:01
$begingroup$
The above answer is in reply to effect of Cu content in water by AYURVEDA wich talks about moderation as presented in a paper.That said ,doctors advice is the best.
$endgroup$
– Chakravarthy Kalyan
Jul 5 at 4:25
4
$begingroup$
This was a good answer until I got to the "Ayurvedic system" discussion. Copper deficiency is rare, so most people are unlikely to "reap the benefits". Any copper supplementation should probably be taken under consultation with a reputable doctor.
$endgroup$
– WaterMolecule
Jul 5 at 17:26
|
show 4 more comments
$begingroup$
Not harmful even if I drink always from copper vessel? We were doing this for more than a decade. Now that our copper vessel is broken, we have stopped it. I am guessing what damage it might have caused us. Any history of any harm that copper might have caused over prolonged use?
$endgroup$
– Mahesha999
Jul 4 at 13:36
$begingroup$
I have not objected against copper antimicrobial activity. I am also well aware copper is essential element in small doses.
$endgroup$
– Poutnik
Jul 4 at 15:05
3
$begingroup$
Note that medical advices are explicitly off topic on Chemistry SE.
$endgroup$
– Poutnik
Jul 5 at 4:01
$begingroup$
The above answer is in reply to effect of Cu content in water by AYURVEDA wich talks about moderation as presented in a paper.That said ,doctors advice is the best.
$endgroup$
– Chakravarthy Kalyan
Jul 5 at 4:25
4
$begingroup$
This was a good answer until I got to the "Ayurvedic system" discussion. Copper deficiency is rare, so most people are unlikely to "reap the benefits". Any copper supplementation should probably be taken under consultation with a reputable doctor.
$endgroup$
– WaterMolecule
Jul 5 at 17:26
$begingroup$
Not harmful even if I drink always from copper vessel? We were doing this for more than a decade. Now that our copper vessel is broken, we have stopped it. I am guessing what damage it might have caused us. Any history of any harm that copper might have caused over prolonged use?
$endgroup$
– Mahesha999
Jul 4 at 13:36
$begingroup$
Not harmful even if I drink always from copper vessel? We were doing this for more than a decade. Now that our copper vessel is broken, we have stopped it. I am guessing what damage it might have caused us. Any history of any harm that copper might have caused over prolonged use?
$endgroup$
– Mahesha999
Jul 4 at 13:36
$begingroup$
I have not objected against copper antimicrobial activity. I am also well aware copper is essential element in small doses.
$endgroup$
– Poutnik
Jul 4 at 15:05
$begingroup$
I have not objected against copper antimicrobial activity. I am also well aware copper is essential element in small doses.
$endgroup$
– Poutnik
Jul 4 at 15:05
3
3
$begingroup$
Note that medical advices are explicitly off topic on Chemistry SE.
$endgroup$
– Poutnik
Jul 5 at 4:01
$begingroup$
Note that medical advices are explicitly off topic on Chemistry SE.
$endgroup$
– Poutnik
Jul 5 at 4:01
$begingroup$
The above answer is in reply to effect of Cu content in water by AYURVEDA wich talks about moderation as presented in a paper.That said ,doctors advice is the best.
$endgroup$
– Chakravarthy Kalyan
Jul 5 at 4:25
$begingroup$
The above answer is in reply to effect of Cu content in water by AYURVEDA wich talks about moderation as presented in a paper.That said ,doctors advice is the best.
$endgroup$
– Chakravarthy Kalyan
Jul 5 at 4:25
4
4
$begingroup$
This was a good answer until I got to the "Ayurvedic system" discussion. Copper deficiency is rare, so most people are unlikely to "reap the benefits". Any copper supplementation should probably be taken under consultation with a reputable doctor.
$endgroup$
– WaterMolecule
Jul 5 at 17:26
$begingroup$
This was a good answer until I got to the "Ayurvedic system" discussion. Copper deficiency is rare, so most people are unlikely to "reap the benefits". Any copper supplementation should probably be taken under consultation with a reputable doctor.
$endgroup$
– WaterMolecule
Jul 5 at 17:26
|
show 4 more comments
$begingroup$
There are two parts of your question. We should not mix historical medical practices with modern scientific truths. Also, this does not mean that all old medical knowledge is bad or useless. In older medicine, gold foil arsenic compounds, silver foil, crushed pearls and mercury oxides were added in medicines,. It does not mean that if these practices were done in ages ago, they are safe by today's standards.
- Is it okay to store kokum juice in copper vessels?
For western readers, kokum juice is a berry juice (Garcinia indica), which is rich in hydroxycitric acid.
Acids in Garcinia indica. The berry is quite sour. A layman can do a quick test. Take a copper vessel and store this berry juice for half an hour. Immediately you will see discoloration and a "brand" new shiny copper surface. I have seen that on a copper cup. This implies that a significant amount of copper has dissolved. We should not store acidic juices in copper vessels.
Secondly, in older times water was not chlorinated. Chloride ions corrode copper so quickly. Add some lemon juice, salt, to a copper cup and it will corrode soon to a green color.
However, it is very much true that in older South Asian culture, copper and tin lined pots and pans were used. The coating would wash away with cooking and people would re-coat them. Aluminum took their place. Finally stainless steel came in.
Regarding storing natural water in a copper vessel, it should be fine for a shorter time (day or so). Silver vessel is a better as an anti-bacterial surface and far more inert than copper. However, nobody is rich enough to use silver (or to be born with a silver spoon as they say). Yes silverware is good for the kings and queens.
Copper is a long term liver toxin. It is also a trace essential element.
You know the Goldilock principle: Everything in moderation. Too little copper in the body, bad. Too much copper-liver damage. You just need the right amount of copper.
.
answered Jul 6 at 2:43
M. FarooqM. Farooq
4,4705 silver badges19 bronze badges
$endgroup$
add a comment |
$begingroup$
There are two parts of your question. We should not mix historical medical practices with modern scientific truths. Also, this does not mean that all old medical knowledge is bad or useless. In older medicine, gold foil arsenic compounds, silver foil, crushed pearls and mercury oxides were added in medicines,. It does not mean that if these practices were done in ages ago, they are safe by today's standards.
- Is it okay to store kokum juice in copper vessels?
For western readers, kokum juice is a berry juice (Garcinia indica), which is rich in hydroxycitric acid.
Acids in Garcinia indica. The berry is quite sour. A layman can do a quick test. Take a copper vessel and store this berry juice for half an hour. Immediately you will see discoloration and a "brand" new shiny copper surface. I have seen that on a copper cup. This implies that a significant amount of copper has dissolved. We should not store acidic juices in copper vessels.
Secondly, in older times water was not chlorinated. Chloride ions corrode copper so quickly. Add some lemon juice, salt, to a copper cup and it will corrode soon to a green color.
However, it is very much true that in older South Asian culture, copper and tin lined pots and pans were used. The coating would wash away with cooking and people would re-coat them. Aluminum took their place. Finally stainless steel came in.
Regarding storing natural water in a copper vessel, it should be fine for a shorter time (day or so). Silver vessel is a better as an anti-bacterial surface and far more inert than copper. However, nobody is rich enough to use silver (or to be born with a silver spoon as they say). Yes silverware is good for the kings and queens.
Copper is a long term liver toxin. It is also a trace essential element.
You know the Goldilock principle: Everything in moderation. Too little copper in the body, bad. Too much copper-liver damage. You just need the right amount of copper.
.
answered Jul 6 at 2:43
M. FarooqM. Farooq
4,4705 silver badges19 bronze badges
$endgroup$
add a comment |
$begingroup$
There are two parts of your question. We should not mix historical medical practices with modern scientific truths. Also, this does not mean that all old medical knowledge is bad or useless. In older medicine, gold foil arsenic compounds, silver foil, crushed pearls and mercury oxides were added in medicines,. It does not mean that if these practices were done in ages ago, they are safe by today's standards.
- Is it okay to store kokum juice in copper vessels?
For western readers, kokum juice is a berry juice (Garcinia indica), which is rich in hydroxycitric acid.
Acids in Garcinia indica. The berry is quite sour. A layman can do a quick test. Take a copper vessel and store this berry juice for half an hour. Immediately you will see discoloration and a "brand" new shiny copper surface. I have seen that on a copper cup. This implies that a significant amount of copper has dissolved. We should not store acidic juices in copper vessels.
Secondly, in older times water was not chlorinated. Chloride ions corrode copper so quickly. Add some lemon juice, salt, to a copper cup and it will corrode soon to a green color.
However, it is very much true that in older South Asian culture, copper and tin lined pots and pans were used. The coating would wash away with cooking and people would re-coat them. Aluminum took their place. Finally stainless steel came in.
Regarding storing natural water in a copper vessel, it should be fine for a shorter time (day or so). Silver vessel is a better as an anti-bacterial surface and far more inert than copper. However, nobody is rich enough to use silver (or to be born with a silver spoon as they say). Yes silverware is good for the kings and queens.
Copper is a long term liver toxin. It is also a trace essential element.
You know the Goldilock principle: Everything in moderation. Too little copper in the body, bad. Too much copper-liver damage. You just need the right amount of copper.
.
answered Jul 6 at 2:43
M. FarooqM. Farooq
4,4705 silver badges19 bronze badges
$endgroup$
There are two parts of your question. We should not mix historical medical practices with modern scientific truths. Also, this does not mean that all old medical knowledge is bad or useless. In older medicine, gold foil arsenic compounds, silver foil, crushed pearls and mercury oxides were added in medicines,. It does not mean that if these practices were done in ages ago, they are safe by today's standards.
- Is it okay to store kokum juice in copper vessels?
For western readers, kokum juice is a berry juice (Garcinia indica), which is rich in hydroxycitric acid.
Acids in Garcinia indica. The berry is quite sour. A layman can do a quick test. Take a copper vessel and store this berry juice for half an hour. Immediately you will see discoloration and a "brand" new shiny copper surface. I have seen that on a copper cup. This implies that a significant amount of copper has dissolved. We should not store acidic juices in copper vessels.
Secondly, in older times water was not chlorinated. Chloride ions corrode copper so quickly. Add some lemon juice, salt, to a copper cup and it will corrode soon to a green color.
However, it is very much true that in older South Asian culture, copper and tin lined pots and pans were used. The coating would wash away with cooking and people would re-coat them. Aluminum took their place. Finally stainless steel came in.
Regarding storing natural water in a copper vessel, it should be fine for a shorter time (day or so). Silver vessel is a better as an anti-bacterial surface and far more inert than copper. However, nobody is rich enough to use silver (or to be born with a silver spoon as they say). Yes silverware is good for the kings and queens.
Copper is a long term liver toxin. It is also a trace essential element.
You know the Goldilock principle: Everything in moderation. Too little copper in the body, bad. Too much copper-liver damage. You just need the right amount of copper.
.
answered Jul 6 at 2:43
M. FarooqM. Farooq
4,4705 silver badges19 bronze badges
answered Jul 6 at 2:43
M. FarooqM. Farooq
4,4705 silver badges19 bronze badges
answered Jul 6 at 2:43
M. FarooqM. Farooq
4,4705 silver badges19 bronze badges
answered Jul 6 at 2:43
M. FarooqM. Farooq
4,4705 silver badges19 bronze badges
4,4705 silver badges19 bronze badges
add a comment |
add a comment |
Thanks for contributing an answer to Chemistry Stack Exchange!
- Please be sure to answer the question. Provide details and share your research!
But avoid …
- Asking for help, clarification, or responding to other answers.
- Making statements based on opinion; back them up with references or personal experience.
Use MathJax to format equations. MathJax reference.
To learn more, see our tips on writing great answers.
Sign up or log in
StackExchange.ready(function ()
StackExchange.helpers.onClickDraftSave('#login-link');
);
Sign up using Google
Sign up using Facebook
Sign up using Email and Password
Post as a guest
Required, but never shown
StackExchange.ready(
function ()
StackExchange.openid.initPostLogin('.new-post-login', 'https%3a%2f%2fchemistry.stackexchange.com%2fquestions%2f117666%2fchilling-water-in-copper-vessel%23new-answer', 'question_page');
);
Post as a guest
Required, but never shown
Sign up or log in
StackExchange.ready(function ()
StackExchange.helpers.onClickDraftSave('#login-link');
);
Sign up using Google
Sign up using Facebook
Sign up using Email and Password
Post as a guest
Required, but never shown
Sign up or log in
StackExchange.ready(function ()
StackExchange.helpers.onClickDraftSave('#login-link');
);
Sign up using Google
Sign up using Facebook
Sign up using Email and Password
Post as a guest
Required, but never shown
Sign up or log in
StackExchange.ready(function ()
StackExchange.helpers.onClickDraftSave('#login-link');
);
Sign up using Google
Sign up using Facebook
Sign up using Email and Password
Sign up using Google
Sign up using Facebook
Sign up using Email and Password
Post as a guest
Required, but never shown
Required, but never shown
Required, but never shown
Required, but never shown
Required, but never shown
Required, but never shown
Required, but never shown
Required, but never shown
Required, but never shown
1
$begingroup$
Kokam is sour (probably acidic; something to do with the reaction). Water is neutral.
$endgroup$
– Eashaan Godbole
Jul 4 at 13:29
2
$begingroup$
Are you asking about storing water in a copper vessel or storing a (likely weakly acidic) juice in a copper vessel? The two are not equivalent.
$endgroup$
– Eric Towers
Jul 4 at 16:45
$begingroup$
The title ( water ) does not match the post ( juice ).
$endgroup$
– Poutnik
Jul 6 at 11:26
$begingroup$
Title earlier was (mistakenly) "juice" (since I had juice experience in my mind right from the starting of writing the question as wanted to tell you that). Now I have already changed it to "water". Since beginning, the post was always: "will it do any harm with water? I know its harmful with juice at normal temperature, but want to know what happens with water at lower temperature." Anyways, responses here are super enlightening. Thanks for all the knowledge. Dont know which answer to accept.
$endgroup$
– Mahesha999
Jul 6 at 12:11
$begingroup$
Then the proper way would be, at the beginning, to remove minor parts with water , putting them to a different question.
$endgroup$
– Poutnik
Jul 7 at 5:20