According to the size of your freezer, find a suitable foam box. You can put it in the freezer in advance to see if it is suitable. Then tie the crab's legs and feet and put them in a foam box. Put them together, try to fill one layer and then add it. Add water to the foam box until the water does not reach the surface of the crab. Then cover the foam box and put it in the freezer for freezing. When you want to eat crabs, just take them out and thaw them, so that preserving crabs can ensure the freshness of crabs to the greatest extent.

Crabs are kept in temporary ponds.

If you can't eat all the crabs in three to five days, you can't store live crabs in the above way. The best way is to make your own bathtub as a temporary breeding pool so that crabs can enjoy it first.

Because the walls of the bathtub are smooth, crabs can't escape. Then, gently pour the crab into the bathtub and fill it with water until it is just buried. If crabs stand on all fours, they can breathe on the water surface, and according to the storage time and quantity, they can taste a small amount of small fish and shrimp. In this way, crabs can be preserved for more than 7 days or longer, and the survival rate of good quality crabs can reach more than 95%.

Special reminder: If you don't eat it right away, please don't wash it with water, or the crab will die. If the indoor temperature does not exceed 15℃, there is no need to put the refrigerator. Generally, it can be stored for 5-7 days, but the crab will lose weight if it is stored for too long, and the taste will not be affected if it is eaten within 3 days.

Extended data:

Although cooked crabs can be eaten overnight, they are not in the safe if they are kept in the refrigerator. Cooked crabs that have been stored for too long are still easy to be poisoned. In the crabs left over overnight, histidine will be decomposed into histamine under the action of some microorganisms. Although heating in the pot can kill pathogenic microorganisms, it cannot destroy toxins.

Therefore, eating cooked crabs stored for a long time may also lead to histamine poisoning. Cooked crabs are also at risk of food poisoning if they are not properly preserved. Because crab meat is fresh and tender, it is easy to lose nutrition after being cooked in the refrigerator, so it is better to cook it yourself.