1. The principle of physical mildew removal method for vegetable freezer is to remove mildew by using temperature, humidity, ultraviolet rays and copper wire mesh filters. Generally, mold grows at a temperature of -6~40 degrees, and it can hardly survive in a low temperature environment. You can also use hot alkaline water to remove mold from equipment. The ultraviolet mildew removal method of vegetable freezer is also a good method, which can not only sterilize but also remove mildew, and also has a certain deodorization effect. However, the ultraviolet ray method has some limitations, because it can only take effect in places where it is directly irradiated outside the department, and ultraviolet rays are affected by temperature and humidity. The closer to the growth temperature and humidity of microorganisms, the better the sterilization and mildew-proof effect will be. Ultraviolet rays can promote the oxidation and volatilization of fat, so refrigerators generally do not use ultraviolet rays to remove mold, because when using ultraviolet rays, we should consider the impact on other items stored in the freezer.

2. There are many chemicals that can be used in the chemical mildew removal method of vegetable freezer. At present, there are lactic acid, formaldehyde, sodium fluoride, bleaching powder, ozone, carbon dioxide, sodium hydroxyphenolate and so on. Are common, can be used to kill mold, so these are generally used when cleaning the refrigerator, when using chemical mildew removal method, pay attention to the role of chemicals, so as not to hurt yourself.