After buying crabs, wash the dirty things on the body surface first, and then soak them in light salt water for a period of time. The concentration of salt water should be slightly salty. The purpose of soaking crabs in light salt water is to make them spit out the dirty things in their stomachs, so it is necessary to change the water several times during soaking until the water spit out by crabs becomes clear.

second, wash the crabs.

When the water spit out by the crab is no longer turbid, you can start brushing. This step requires courage and certain skills. Pay attention to prevent fingers from being pinched by crab pliers. You can pinch the left and right sides of the crab with your thumb and middle finger and put the crab shell up. Practice has proved that this method is the safest and will never be caught.

Hold the crab firmly, take it under the tap, turn on a thin stream of water, and then you can brush the crab with a toothbrush, and rinse it while brushing. Brush hard, especially the crab hair, because crab hair is the dirtiest.

The specific steps and methods of washing crabs are as follows-

1. Wash the sides, back, abdomen and mouth of crabs first, and then clean the feet and the roots of pliers.

2. Next, it is necessary to clean the belly cover. This step is crucial, because there are many dirty things and crab excrement in the belly cover. Before cleaning the belly cover, the crab's pliers must be firmly grasped to prevent being caught. Then you can open the abdominal cover, squeeze out the excrement first, then wash away the dirty things in the abdominal cover, and finally wash the crab claws clean.

The washed crabs are thrown into the clear water basin conveniently, and then washed together to be used for cooking.