1. If it's a cooked crab, you can wrap it in plastic wrap and put it in the refrigerator. Generally, it won't go bad. Cook it at high temperature before eating the next day.

2. If the crabs were not stored in cold storage the day before, or the weather was hot, it may lead to the growth of bacteria, and food poisoning may occur when eating such crabs. Therefore, it is usually not recommended to eat overnight in this situation.

3. When eating crabs, you should cook them thoroughly, and it is best to finish them on the same day. It should be noted that crabs should not be eaten more.

How to raise crabs after eating them all.

1. Put the crab in a deep jar. If there are too many crabs, keep them separately. Never stack them, which may lead to crab death.

2. If it is a river crab, it can be cultivated directly with clear water. If it is a sea crab, you need to add a proper amount of salt. Then add the right amount of water. The water depth should not exceed the crab's shell, but it should exceed the crab's shell, but make sure that the crab can stand up and show its head. In order to prevent crabs from escaping, you can also cover the basin with a layer of gauze.

3. put the basin in a cool and ventilated place indoors, not in the sun, not covered, just change the water once a day. If you want to ensure the fat of crabs, you need to feed them.