This theory about the health benefits of copper on water is of Indian vintage...Ayurveda, to be precise. In many Indian homes, people prefer to not just store drinking water in copper vessels, but even uses copper jugs and containers (Lota) to pour water into glasses made of copper. This is an age-old practice that has continued unchanged in India since the time copper was discovered, which was very long back, probably thousands of years ago.
We know that Ayurveda has survived the challenges of time mainly because it is true and it is real. It not just works but in many instances, it works amazingly well and way better than standard allopath.
Ayurveda has identified the imbalance of three bio-elements (Dosha) in the human body for most of the illnesses and ailments - Vata, Kapha and Pitta which are connected to the five great elements - earth, water, fire, air, and space. Water stored in copper containers has been found to deal effectively with the imbalance in these bio-elements. However, water needs to be stored for a minimum of eight hours in the copper container to be charged with the good sterilizing properties of the metal to become effective against the imbalance of bio-elements.
Copper has been found to be very effective against bacteria that cause waterborne diseases like jaundice, diarrhea, dysentery, gastroenteritis, and others. A certain level of contamination in water is effectively neutralized by the positive metallic properties of copper. The absence or lack of copper in the human body is known to be one of the main causes of thyroid problems.
Therefore, water purified in a copper vessel is ideal for folks struggling with thyroid related issues. In addition to that, the positive effects of copper are also a good antidote against arthritis and bone joint pain as well as skin problems like acne, blemishes, and scars.