Tibetan tingas

Molten liquid formed by heating the mixture of Gold, Iron, Copper, Mercury, Lead, Tin and Silver in a carefully measured proportions is heated to 400oC is placed in a Bowl Shaped Mould made of clay and left for a day. Then the hardened material resembling the bowl shape is removed from the mould and is again kept in a oven full of coal and heated until it turns red. The bowl is then beaten by various tools and again placed in the oven. This process is repeated multiple times, approximately about 2 hours until a perfect shape is formed. This process requires very careful technique and physical effort. The bowl is dipped in a salt water time to time during this process which adds temper to the bowl and also reduces smoke while heating.