Whether fried snails can stay overnight in the refrigerator depends on the situation, such as: 1. If the fried snails can be put in the refrigerator overnight, if they are properly preserved, such as sealing snails in the freezer, bacterial pollution can be avoided and deterioration can be delayed, which generally will not lead to deterioration of snails and will not affect the next day's consumption. However, it must be heated thoroughly before eating to kill the bacteria inside.

2. Don't put it in the refrigerator overnight: If the fried snails are not sealed in the freezer, they can't be eaten the next day, because a large number of bacteria will breed overnight, producing protein degradation products, which is harmful to human body. Symptoms such as diarrhea and abdominal pain will appear after eating, which will affect your health.