Water is the most essential element to sustain life on this planet. 70 per cent of human body is made up of water. You may have not known this but in ancient times, our ancestors and even our grandmothers followed the practice of storing water in containers made of copper. Their aim was probably to safeguard drinking water but there's more to the story. In today's modern world where we have UV filters and RO purifiers to purify water, the storage of water in metal containers may sound old-fashioned and not needed. However, this age-old practice referenced in ancient texts of Ayurveda is now supported by several.