Moldy and deteriorated food can't be eaten, which contains a lot of mold, which will lead to confusion of digestive tract flora, food poisoning and even acute abdomen, which is life-threatening. Eating moldy food will cause mold spores to invade the blood or respiratory tract, causing major problems. Moldy food contains aflatoxin, which is harmful to human body.

Rice can be stored at low temperature, and the propagation speed of mold will slow down at low temperature, so it can be stored in the refrigerator. As the refrigerator is a special "drying box", it has dual functions of keeping low temperature and drying.

Extended data:

Food souring usually occurs in carbohydrate foods and dairy products. The sour taste of food is mainly caused by the growth and metabolism of spoilage microorganisms, which mainly include acetic acid, propionic acid, Pseudomonas, micrococcus, streptococcus lactis and lactic acid bacteria. A few molds, such as Rhizopus, will also use carbohydrates to produce drums, which will cause food spoilage.

Food odor is mainly caused by organic amine, ammonia, sulfur poisoning and fecal oxytocin produced by bacteria decomposing protein foods. Common bacteria that decompose protein are Fusobacterium, Proteus, Bacillus and so on.