How many days can a river crab live

The crabs that ordinary people eat at home are generally river crabs. China is also a major country that breeds river crabs, and the Yangcheng Lake hairy crabs are the most famous. Because the water of Yangcheng Lake is clear, the hairy crabs raised here are tender and sweet, and the crab roe in the hairy crabs has a very strong tonic effect on the human body. Eating more hairy crabs is very good for the human body. But how many days can the river crabs you buy live?

Saving method 1:

Store crabs in the refrigerator.

If the number of crabs you buy is small and they can be eaten within about three days, it is relatively simple to preserve them. Choose crabs that are vigorous, tie up their legs to reduce their physical consumption, then place them in the refrigerator, keep the temperature at 5-10 degrees, and cover with a wet towel for storage. When eating every day, choose the crabs that are not energetic enough to eat first, and the crabs that are full of energy can continue to be preserved.

Saving method 2:

Choose crabs with vigor and vitality, prepare a 30-50 cm high plastic bucket/basin, put the crabs in it without stacking; then add water to half the height of the crab's body, mainly to keep it moist, and do not bury the crab completely. Because you are unlikely to have oxygenation equipment, if the water is too deep, the crab will suffocate and die due to lack of oxygen. The bucket/basin does not need to be covered. Check the crabs every day and eat the crabs that are not energetic enough in time. If this method is used to preserve Yangcheng Lake crabs, the crabs can be preserved for more than 5 days when the temperature is not high.

Saving method three:

If you buy more crabs than you can eat in three to five days, the best way to preserve them is to use your bathtub as a temporary storage pond for the crabs. Because the walls of the bathtub are smooth, the crabs cannot escape. Gently pour the crabs into the bathtub and fill it with water to just cover the crabs. The crabs can stand up on their eight legs and breathe on the water surface. Add a small amount of small fish and shrimp depending on the storage time and quantity. Yangcheng Lake crabs can generally be stored in this way for more than 7 days or longer. The survival rate of good quality crabs can reach over 95%. In addition, check the crabs every day and eat the crabs that are not energetic enough in time.