Food is easy to get moldy in humid environment, airtight conditions, etc. In addition, the food itself can also lead to the occurrence of moldy phenomenon. 1. Humid environment: In a humid environment, food is usually easy to combine with bacteria in the air, thus breeding more bacteria or fungi and causing moldy food. 2. Airtight: If the food is stored in an airtight environment, the temperature will rise and this will show a hot and humid phenomenon. This environment is very conducive to the propagation of fungi, leading to moldy food. 3. The food itself: For example, the food is not sterilized thoroughly and the dry food is not completely dried. Microbial reproduction in trace oxygen or high humidity environment can easily lead to problems such as mold, mildew and bag rising. Moldy food can easily cause food poisoning, leading to symptoms such as vomiting, diarrhea and abdominal pain in the body. Therefore, for the sake of your health, do not consume moldy food. If the food needs to be stored for a long period of time, vacuum packaging can be used to isolate oxygen and inhibit the growth of mold. Pay attention to ventilation during storage and keep it dry for long term storage.