Ayurveda states that water stored in a copper Vessel becomes purified. Ayurveda recommends storing water in copper vessels. Benefits of copper according to ayurveda: - Drinking water from copper cups prevents ageing, vaya-sthapak ; Copper can destroy undesirable virus and bacteria. When copper dissolves in water, water becomes ionic (electrolyte) as can be ascertained by its pH measurement. That is the reason the micro-organisms get killed in such water.