1, the reason for the heat Some people who can't make crabs like to steam crabs with fire. Crabs struggle violently as soon as they enter the pot. The crab that comes out of the pot at last will fall off its leg. It doesn't matter if they eat by themselves. If they entertain guests, it will be a bit unsightly.

2, the reason for the crab, the crab's legs are probably the crab's own reasons. If it's cold water or a broken leg, buy a tender crab. The bones of tender crabs are fragile and easy to fall off during cooking.