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In supermarkets, there are often some foods that are about to expire at reduced prices or bundled for sale. Can I eat food near the expiration date? Before any kind of food goes on the market, enterprises will do experiments on the shelf life of food. The experimental contents include the detection and monitoring of physical and chemical, microbial and sensory indexes under qualified storage conditions. After several cycles of experiments, the safe shelf life of food can be determined and the shelf life can be determined. As long as supermarkets store and display food in strict accordance with the requirements of storage conditions on food packaging bags (such as temperature, humidity, light and other conditions), the physical, chemical and microbial indexes of food will not change dramatically, and food safety problems will not occur after eating. In other words, at least you won't have a bad stomach The disadvantage of temporary food is that its senses are not as good as fresh food. For example, quick-frozen food will lose water when frozen for a long time, and powdery food will agglomerate.

Suggestion: buy food must look at the shelf life! Some supermarkets are poorly managed and may have expired food sales. For the safety of yourself and your family, you must look at the date of production! Some foods are marked with shelf life, which is more intuitive. For foods with high temperature requirements, such as frozen food, low-temperature yogurt, pasteurized milk, cheese and other products displayed in supermarkets' refrigerators or freezers, the freshest production date should be given priority. Because the freezers in supermarkets will be thawed regularly or some customers fail to close the freezer doors in time, the change of temperature will affect the quality of frozen products, so the fresher the low-temperature food, the better the flavor;

Foods that don't need high temperature, such as canned sauce, milk at room temperature, flour, rice, etc., as long as they are produced within the date, there is not much problem; Cookies, nuts, meat products, oil and other oily foods will have the problem of rancidity of oil (that is, we often say "hala"). The physical and chemical test results of these foods may be qualified when they are close to the critical point, but the indicators are close to the critical point and the taste is not good. It is recommended to give priority to those with close dates; The fresher the food for the elderly and children, the safer it is. I wish you and your family health.