Uses of cryogenic liquid nitrogen storage tanks

With the advancement of science, people have put forward higher requirements for food safety. Traditional frozen storage methods mainly use liquid nitrogen or dry ice as refrigerants, but these refrigerants have certain limitations. For most products, prolonged cold storage will result in a decrease in product quality. For example, fruits such as bananas and oranges can be stored for 2-3 days at 0°C, one week at -30°C, and two months at -50°C. The decline in the quality of frozen food is mainly due to the destruction of protein, vitamins and soluble dietary fiber and other nutrients in food due to the low freezing temperature.