This machine adopts the pasteurization process and is suitable for low-temperature sterilization of vacuum soft-packed food, fruit, juice drink, vegetable juice drink, pickles, salted vegetables, pickled vegetables, miso, big root, kimchi, mustard, mountain vegetables, jam Vacuum soft-packed foods such as jelly and soy products, hose soft bottle packaging, sterilization of glass bottle packaging, and greening of various leafy vegetables. The machine is also suitable for the process of blanching or pre-cooking of fruits and vegetables.