Cooked crabs cannot be eaten overnight.

If you need to store the crab overnight, put the crab in the freezer. However, direct freezing can easily cause cooked crabs to lose moisture and become dry and unpalatable. When freezing, you can freeze it together with the soup in which the crabs are cooked to better maintain the freshness of the crabs.

"Overnight dishes" do not only refer to dishes that have been left overnight. If they have been left for more than 8-10 hours, they should be considered overnight. There are two reasons for the increase in toxic ingredients in food. The first is that chemicals in food produce carcinogens, such as nitrite, which cannot be removed even if heated. Another reason is secondary contamination by foreign bacteria during placement. Extended information:

Precautions for eating crabs:

1. Crabs must be steamed and cooked thoroughly, and do not eat raw crabs

Crabs are made from animal carcasses or humus. Food, so the body surface, gills and gastrointestinal tract of crabs are covered with various bacteria and sludge. Crabs must be steamed and cooked thoroughly before eating.

2. Crabs should be eaten alive, and dead crabs should not be eaten

The stiffness period and autolysis period after the death of crabs are greatly shortened, and the bacteria in the crabs will multiply rapidly and spread to Crab meat can cause vomiting, abdominal pain, and diarrhea in eaters.

The shell of fresh live crabs is blue-black and shiny, with a full navel and a white abdomen. The shell of a dying crab is yellow, the legs are soft, and it is difficult to turn it right.

3. Crabs should be steamed and eaten immediately, do not store them

In case you cannot finish them, the remaining crabs must be stored in a clean, cool and ventilated place, and must be cooked again before eating. Cook and steam thoroughly. Reference: Steamed crabs cannot be kept overnight. What should I do if I can’t finish the crabs? People's Daily Online