This Copper Carafe has been carefully handcrafted with 99.09 percent purity. Drinking the water stored in Pure Copper carafe for a minimum of 8 hours has numerous health benefits. We ensure you get the best quality and finest of craftsmanship. For the best results, store the water overnight or at least 6 hours in a Copper vessel and have a glass on an empty stomach in the morning. pure copper carafe