1. Put the live crabs in a plastic bucket/basin with a height of 30-50cm. Be careful not to stack them. Just add water to half the height of the crab. You can't bury all the crabs. If the water is too deep, crabs will suffocate due to lack of oxygen. Don't cover the bucket/basin, check the hairy crabs every day, eat the hairy crabs with insufficient vitality in time, and preserve the hairy crabs in Yangcheng Lake in this way. When the temperature is not high, hairy crabs can be kept fresh for more than 5 days.

2, put in the refrigerator, save live crabs can be put in the refrigerator, find a suitable foam box according to the size of your refrigerator freezer, but pay attention to the method, first tie the crab's legs and feet and put them in the 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.

3. Put it in the bathtub, use the bathtub as a pond, gently put the bought fresh crabs in, and the injected water just passes the crabs, so that they can stand up and breathe. According to the time required for preservation, put a small amount of small fish and shrimp into the water. This preservation method can make crabs survive for 7 days or longer, and the bathtub wall is smooth, so crabs can't escape. There is another point that needs special attention. If you don't eat the crabs you bought immediately, don't wash them with water, or they will die.