After buying fresh live crabs, you can tie all their feet with ropes in the future, then take some wet towels, wrap the live crabs with wet towels and store them in the freezer. This will keep them for 3 to 5 days. During storage, you should check them every day and eat crabs with weak vitality in time.

2, plastic bucket preservation:

Fresh live crabs can also be kept in plastic pots or buckets, because their inner walls are smooth and crabs are not easy to climb outside. Put the fresh live crab into a basin or bucket, and then add a proper amount of water, but the amount of water should not be too much, just half the height of the crab, otherwise the crab will die of lack of oxygen.

Extended data

Crabs are rich in protein and trace elements, which have a good nourishing effect on the body. Crabs contain more vitamin A, which is helpful for skin keratinization. Crabs also have anti-tuberculosis effects, and eating crabs is of great benefit to the rehabilitation of tuberculosis.

Crab meat is delicious and nutritious, containing a lot of protein and fat, and more substances such as calcium, phosphorus, iron and vitamins. Every 500g crab contains 49.6g of protein, 9.3g of fat, 27.2g of sugar, 0/.088mg of phosphorus/kloc-,33.6mg of iron and proper amount of vitamin A, etc. It is both a tonic and a delicious food, and it is very popular with people. It is usually the main course of a wedding reception. But not suitable for pregnant women.

References:

Baidu encyclopedia: crab