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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;








12












$begingroup$



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.










share|improve this question











$endgroup$







  • 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


















12












$begingroup$



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.










share|improve this question











$endgroup$







  • 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














12












12








12


2



$begingroup$



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.










share|improve this question











$endgroup$





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






share|improve this question















share|improve this question













share|improve this question




share|improve this question








edited Jul 6 at 8:35







Mahesha999

















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













  • 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











3 Answers
3






active

oldest

votes


















21












$begingroup$

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.






share|improve this answer











$endgroup$








  • 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



















8












$begingroup$

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.enter image description here


  • 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 .


enter image description here



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/






share|improve this answer











$endgroup$












  • $begingroup$
    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



















5












$begingroup$

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.




  1. 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.
.






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    3 Answers
    3






    active

    oldest

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    3 Answers
    3






    active

    oldest

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    active

    oldest

    votes






    active

    oldest

    votes









    21












    $begingroup$

    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.






    share|improve this answer











    $endgroup$








    • 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
















    21












    $begingroup$

    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.






    share|improve this answer











    $endgroup$








    • 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














    21












    21








    21





    $begingroup$

    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.






    share|improve this answer











    $endgroup$



    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.







    share|improve this answer














    share|improve this answer



    share|improve this answer








    edited Jul 5 at 5:57

























    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













    • 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














    8












    $begingroup$

    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.enter image description here


    • 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 .


    enter image description here



    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/






    share|improve this answer











    $endgroup$












    • $begingroup$
      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
















    8












    $begingroup$

    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.enter image description here


    • 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 .


    enter image description here



    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/






    share|improve this answer











    $endgroup$












    • $begingroup$
      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














    8












    8








    8





    $begingroup$

    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.enter image description here


    • 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 .


    enter image description here



    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/






    share|improve this answer











    $endgroup$



    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.enter image description here


    • 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 .


    enter image description here



    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/







    share|improve this answer














    share|improve this answer



    share|improve this answer








    edited Jul 6 at 13:41

























    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

















    • $begingroup$
      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












    5












    $begingroup$

    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.




    1. 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.
    .






    share|improve this answer









    $endgroup$

















      5












      $begingroup$

      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.




      1. 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.
      .






      share|improve this answer









      $endgroup$















        5












        5








        5





        $begingroup$

        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.




        1. 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.
        .






        share|improve this answer









        $endgroup$



        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.




        1. 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.
        .







        share|improve this answer












        share|improve this answer



        share|improve this answer










        answered Jul 6 at 2:43









        M. FarooqM. Farooq

        4,4705 silver badges19 bronze badges




        4,4705 silver badges19 bronze badges



























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