Beef: Refrigerate for 1 to 2 days and freeze for 90 days. It can be stored at 1℃--1℃ for 3 to 7 days, and at -10℃--18℃ for a longer period of time, usually 1 to 2 months. The shelf life of frozen beef below -18℃ is 18-24 months

1. Under normal circumstances, the common refrigeration temperature for storing food in the refrigerator is 4℃ to 8℃. In this environment, most The growth rate of most bacteria will slow down. However, some bacteria, such as Yersinia and Listeria, can grow and reproduce rapidly at this temperature. If you eat food infected with such bacteria, it will cause intestinal diseases.

2. Nie Hong, executive director of the Nutrition and Medicinal Diet Professional Committee of the China Association of Traditional Chinese Medicine and associate professor of Heilongjiang University of Traditional Chinese Medicine, said: Different foods have different storage time limits in the refrigerator. What can be determined is that the storage time should not be too long. For a long time, it is best to eat as you buy to avoid affecting the deliciousness of the food. After spoilage, it will contaminate other foods and affect the health of your family. Extended information

Sterilization conditions at freezing temperatures:

1. In the freezer layer of the refrigerator, the temperature is generally around minus 18°C. At this temperature, most bacteria can Inhibit or kill, so the food stored here has a better preservation effect. However, freezing does not mean complete sterilization. Some bacteria with strong frost resistance will survive.

2. Therefore, from another perspective, if the refrigerator is not disinfected frequently, it will become a "breeding ground" for some bacteria. In addition, the food itself also carries bacteria. For example, unprocessed ingredients such as fresh vegetables and fruits, especially meat, poultry, eggs and seafood, all contain bacteria. Processed foods such as sauces, barbecues, cold dishes, etc. Foods such as pastries and fish and fish may also be subject to exogenous cross-contamination due to incomplete processing and improper storage.

Reference: People's Daily Online - How long can food be kept in the refrigerator? Do not store cooked meat for more than 4 days

Reference: Xinhuanet - Refrigerator freezing time limit: beef can be frozen for 90 days and chicken can be stored for one year