There are many ways to cook crabs. The most common ones are stir-frying and steaming. Steaming is best for ten to twenty minutes, depending on the size of the crab. It is considered cooked when the color turns red. The time If it is too short, it may not be able to kill the bacteria contained in the crab. Separate the crab body and shell from the buttocks, clean the crab gills, crab heart, crab stomach, and crab intestines, place them on a plate, and put them in a steamer after the water boils. This is how to make sea crabs. Because they are too big to be steamed, smaller hairy crabs can be steamed whole and take less time.