11 Liter Hammered Copper Water Dispenser Matka Tank Pot Container for Water Storage with 4 Glasses,Capacity- 11000 ML Material - Pure 99% Copper ( Tested by Government Registered Lab ) 5 Reason Why You Should Drink Water In Copper - 1. Help With Weight Loss 2. Keeps You Young 3. Helps Fight Enemia . 4. Regulates Brain Function 5. Reduces Arthritis Pain. Cleaning Instructions:- Clean your copperware by hand and avoid dishwasher. Use pitambari powder to clean copper utensils and wipe with soft cotton cloth. Over time copper will naturally change colors ? transforming from a shiny brown color to darker browns, then blues and finally greens after a number of years. When exposed to the natural elements such as wind and rain, copper develops this ?patina? which actually protects and preserves the metal underneath Sufficient water storage for medium big families