A crab has eight legs, belongs to crustaceans, and lives in the sea and offshore. Common crabs are swimming crab, blue crab and so on. Crabs should be tied with ropes and put into cartons, and then kept in the refrigerator. But dead crabs can't be eaten, which will affect human health.

How many legs does a crab have?

1, 8 legs

Crabs have eight legs. Crabs belong to crustaceans and are protected by hard shells. They belong to the same kind of animals as lobsters. Most crabs live in the ocean or coastal areas, but only a few crabs live in fresh water areas.

2, the preservation method

Crabs can be stored in the refrigerator. First tie their legs and feet with ropes, and then put them neatly in the foam box. Then put the foam box in the cold storage area of the refrigerator, and keep the temperature at about 3 degrees, so that crabs can be kept for 3 to 5 days.

3. Preventive measures

Crabs will nourish many bacteria and harmful substances after death. Don't continue to cook and eat, so as not to affect human gastrointestinal health. In addition, cooked crabs should be eaten within 2 hours, and toxic substances may breed in them after a long time.