There are two ways of heating, one is electric heating and the other is steam heating. The principle of pasteurization is that within a certain temperature range, the lower the temperature, the slower the bacteria reproduce, and the higher the temperature, the faster the bacteria reproduce. If the temperature is too high, bacteria will die. Different bacteria have different growth temperatures and heat and cold resistance. Pasteurized bacteria are not very heat-resistant. Use appropriate temperature and holding time to kill them all. However, after pasteurization, a small number of harmless or beneficial, relatively heat-resistant bacteria or bacterial spores remain. In the food, beverage, pharmaceutical and other industries, some packaged products are required to be sterilized in water baths. The packaged products are placed on the adjustable-speed stainless steel mesh belt, and enter the sterilization box in order under the action of the conveyor belt. After sterilization with “high-temperature water as the medium”, they are then transported by the conveyor belt to the cooling box for uniform cooling, thus To meet the product sterilization requirements, this series of equipment operates continuously, and the sterilized packaging products are continuously sent to the next production process. The temperature and speed can be set according to the process requirements, and the operation is smooth. The stainless steel mesh belt has high strength and small stretchability. Deformable and easy to maintain.