Designer Copper bottle: Copper oxidizes naturally and it gets grey or black spots on the surface of copper which will go after cleaning. Black oxidized spots are not visible on printed copper bottles. Normal copper bottles need to be cleaned at regular intervals which is a hassle. It aids in weight loss and slows down aging If diet just doesn't seem to be helping you lose weight, try drinking water stored in a copper vessel on a regular basis. Apart from fine-tuning your digestive system to perform better, copper also helps your body break down fat and eliminate it more efficiently. If you are worried about the appearance of fine lines, copper is your natural remedy. Packed with very strong anti-oxidant and cell forming properties, copper fights off free radicals