Product descriptionrbhmc bronze master bronze is an alloy consisting primarily of 80% copper commonly with about 20% tin. Bronze is typically very ductile alloys. Bronze also oxidize as it is a mixture of copper and tin and it need to be cleaned in every 23 days to preserve its shining like bronze gold. The primitive man started drinking water from his cupped hands. Till the invention of stainless steel, aluminum and plastic, common man was using bronze.Care 1. To keep bronze pieces always shiny, you have to clean and polish them as soon as they start losing their luster. The sooner you repolish, the easier it is to make them shine. 2. You will need to repeatedly wash the bronze items by cleaning powder or paste lemon juice and baking soda to clean of the patina. 3. Gloves are recommended, especially if you have several bronze pieces to clean, because prolonged contact with acid of lemon or cleaning powder is not good for your hands.Material bronze.Why kansa? = copper or brass reacts with sour food, salt and lemon which can be harmful for the body. Therefore, they are not recommended to eat or cook in. Whereas, kansa or bronze does not react with sour acidic food hence, it is the best metal to eat and cook in.