Why is it good for you?
Based on charak samhita in Ayurveda, water stored in a copper vessel has the ability to balance all the three doshas in your body and it does so by positively charging the water. The water stored in a copper vessel is known as 'Tamra Jal' and is supposed to be consumed after storing the water in a copper vessel for at least eight hours.
When water is stored in a copper vessel, the copper gently leeches into the water and lends all its positive properties. The best part about this water is that it never becomes stale and can be stored this way for long periods of time.