1. You can tie the crabs and put them in the refrigerator at 5-10℃, and then apply wet paper towels on the surface of the crabs. 2. You can soak the crabs in water, change the water and water the crabs regularly, and do not brush the crabs in advance. 3. Provide appropriate humidity, living environment and nutrients to crabs. If you need to store them for a longer period of time, you can untie the crabs, put them in a large basin, and bury them in water.

1. How to keep river crabs alive after buying them

1. Put them in the refrigerator

Crabs have strong mobility, so merchants tie them up to reduce the risk of crabs. Activity level so as not to consume energy. After you buy the crabs and bring them home, you can tie the crabs first, then apply wet paper towels on the surface of the crabs, and put them in the refrigerator at 5-10°C.

2. Keep alive at room temperature

The season for eating crabs is around October. The weather is not hot during this period. You can soak the crabs in water and cook them regularly. Change water and water. Do not brush the crabs in advance, otherwise it will cause a large number of crabs to die.

3. Nutritional maintenance

To preserve live crabs, it is necessary to ensure appropriate humidity and living environment, and to provide nutrients to the crabs. If you need to store it for more than a week, you can untie the crab and put it in a larger basin and bury it in water. In this way, the crabs can stand out of the water to breathe by themselves, and they can also be fed some small shrimps, sesame seeds, broken eggs and rice wine, etc.

2. Are river crabs a type of seafood?

1. Are river crabs a type of seafood?

River crabs grow in fresh water and are not a type of seafood. seafood.

2. Characteristics of river crabs

(1) The scientific name of river crab is "Eriocheir sinensis", also known as river crab, crab, hairy crab etc., is a large crustacean. They often live in caves on the mud banks of rivers, lakes and swamps. They are usually active at night and eat fish, shrimp, animal carcasses and grains.

(2) The life of a river crab is very short. It goes through several stages in its life, such as flea-like larvae, big-eyed larvae, juvenile crabs and adult crabs. It needs to go through 5 times of molting of larvae to become big-eyed larvae. After 13-15 molts, it becomes an adult crab. River crabs have only one reproductive cycle in their lives, and they will die after reproduction. Usually the life span of river crabs is 1-3 weeks.