There are fixed, tilting, stirring and other styles. The sandwich pot has the characteristics of large heating area, high thermal efficiency, uniform heating, short boiling time of liquid materials, easy control of heating temperature, beautiful appearance, easy installation, convenient operation, safety and reliability. Sandwich pots are widely used in the processing of various foods, and can also be used in large restaurants or cafeterias to cook soups, cook vegetables, stew meat, and porridge, etc. It is a good equipment for food processing to improve quality, shorten time, and improve working conditions.