2. When steaming, crabs struggle because of heat, and when they die, their bellies are down, yellow paste flows out and they lose a lot of nutrients. It is necessary to destroy the brain with a needle in advance and paralyze it. When steaming, the abdomen can be upward and the yellow paste will not be lost.

3. There are paragonimiasis cysts in crabs. If it is not cooked, it is easy to get paragonimiasis after eating. Steam as soon as you want, and steam as much as you want. It is best not to eat leftover crabs.