1 salad dishes not to keep First, the leftovers are divided into two categories: the first is vegetables, and the second is fish and soy products. Among them, vegetables that may produce harmful substances overnight are vegetables. Because vegetables contain high levels of nitrite, bacterial activity may gradually turn into toxic nitrite during storage. However, if it is only for one night in the refrigerator, the rise of this nitrite is far from reaching the level of food safety accidents. But no matter what, vegetable is not recommended to leave more than 24 hours, salad must be more careful. Fish and soy products only have the problem of microbial reproduction. The nitrite problem basically does not need to be considered. Compared with soy products, soy products are more prone to spoilage. Their common trouble is the possibility of breeding dangerous pathogens, such as the horrible Clostridium botulinum. This bacteria can produce the world's first poison "botulinum toxin", but the toxin can be destroyed after heating at 100 °C for several minutes, but if there is no heat penetration, it is very dangerous. It should also be noted that no matter what kind of food, the longer it takes to put it at room temperature, the later it takes to put it in the refrigerator, the larger the “base number†of the microorganisms and the less secure it will be after storage. Into the refrigerator, the cooling rate is also very important. If the contents of the refrigerator are too full, the cooling effect is insufficient, or the size of the dishes is too large, the cold air is introduced slowly, and it is difficult to bring the dishes down for a long time. After understanding these basic knowledge, you can come up with countermeasures to save leftovers. PE Coverall,Disposable Coveralls,Nonwoven Protective Coverall,Disposable Protective Coverall ShaoXing SurgeCare Medical Products Co., Ltd. , https://www.sxsurgecaremedical.com