The giant 1 washing pot is heated because it can effectively dissolve grease. Oil and fat are collectively referred to as grease. It is a complex mixture formed by sugar conversion during the maturity of oilseed, and it is the main chemical component in oilseed. The main components of oils and fats are glycerides of various higher fatty acids. Oils and fats are easy to form solids at low temperature, and hot water can melt them.