1. If the crab is dead, it can still be eaten within a relatively short period of time. You can steam the crabs immediately. If you can't finish them, you can cool them completely and put them in the refrigerator. It can ensure that there will be no big losses. After freezing raw crabs, the crab meat is almost shriveled and unfit to be eaten. This problem can be avoided by steaming it. Wash, steam, and then freeze for storage.

2. If the crab is already dead, it can be pickled. It is best if it can be eaten in time, or it can be stored in the refrigerator. If you need to store it for a few days, you can store it in the freezer. But it must be marinated before being stored, and cannot be directly frozen.

3. In fact, after the crab dies, Huanghe paste will begin to turn into liquid and drain away. In fact, the crab has lost its edible value, and when the crab dies, its body will produce the toxic substance histamine. It may cause food poisoning and endanger people's health. It is indeed possible to keep dead crabs fresh for a short period of time, but for the sake of better health, it is best not to eat them.