1. Prepare a basin of water and add some white wine. Put the crab in a pot and let it soak in water for 5- 10 minutes. All the dirt in the body will be discharged through the stimulation of white wine. At the same time, crabs can be drunk with white wine. If there is no white wine at home, you can burn it with warm water of 45 degrees.

2. Grasp both sides of the crab cover with your index finger and thumb, and brush eight crab legs, both sides of the crab cover and crab pliers with your other hand in turn. In particular, crab claws should be brushed several times, because there are so many hairs on crab claws that it is easy to hide evil people and shelter evil people.

3. Grab the sides of the crab, open the navel of the crab, and clean the crab belly with a toothbrush. There will be a lot of sediment in this place, so it must be cleaned up. Then wash it with running water for several times, and you can cook it in the pot.