The machine is made of high-quality 304 stainless steel, stable operation, stepless speed regulation, low noise, high strength stainless steel mesh belt, small flexibility, not easy to deform, easy maintenance, compact structure, convenient operation, low failure rate, steam heating method, suitable for continuous sterilization operation. The machine is equipped with double-layer mesh belt, which can effectively press the materials into the water completely, so that the materials can be sterilized evenly. The transmission speed of the mesh belt is adjustable. The equipment is equipped with a pneumatic angle seat valve. When the temperature in the sterilizer is lowered, steam will be added automatically. When the temperature in the sterilizer reaches the set temperature, it will be automatically closed. The machine has the characteristics of good temperature control, high efficiency and labor saving. The equipment is equipped with a circulation pump to make the water temperature in the sterilizer uniform. The outer tank body is provided with an insulating layer to reduce heat loss and save energy. It has steam outlet on the upper side of the equipment, and the excess exhaust gas is discharged from the exhaust outlet. The upper cover can be lifted to clean the inside of the body, and the bottom side is equipped with a sewage outlet for convenient sewage discharge and cleaning. After sterilization, the material is transported to the cooling machine through the mesh belt to cool down to complete the entire pasteurization process.