choose crabs with strong vitality, tie their feet to reduce the physical consumption of crabs, then put them in the freezer of the refrigerator, keep the temperature at 5 -1 degrees, and cover them with wet towels for preservation. Choose the ones with insufficient vitality first, and the crabs with sufficient vitality can continue to be preserved.

The way to tell the difference is to touch the crab's eyes with your hand, and eat it first if it is insensitive.

preservation method 2: select vigorous crabs, prepare a plastic bucket/basin with a height of 3-5 cm, and put the crabs in it without stacking; Then add water to half the height of the crab's body mainly to moisturize, and you can't bury all the crabs. Because you are unlikely to have oxygen-increasing equipment, if the water is too deep, the crab will die of hypoxia and suffocation. There is no need to cover the bucket/basin, check the crabs every day, eat the crabs with insufficient vitality in time, and preserve Yangcheng Lake crabs by this method. When the temperature is not high, crabs can be preserved for more than 5 days.