1, soaked in light salt water. Rinse the dirty things on the body surface first, then soak them in light salt water for a period of time, and then soak them in light salt water to let them spit out the dirty things in their stomachs.

2. Brush crabs. When the water spit out by the crab is no longer turbid, wash the crab with a brush. This step requires a certain skill, pay attention to prevent fingers from being caught by crab pliers. Pinch the left and right sides of the crab with your thumb and middle finger and turn the crab shell up. After catching the crab, take it under the tap, turn on the thin water, brush the crab with a toothbrush, and wash it while brushing. Brush hard, especially crab hair, because crab hair is the dirtiest.

3. After brushing the thighs, brush the two sides of the crab and the two crab claws with a toothbrush, especially the crab claws. Be sure to brush them a few times, because the crab claws are hairy and easy to hide evil.

4. Clean the abdominal cover. There are a lot of dirty things and crab excrement in the belly pocket. Open the belly cover, first squeeze out the excrement, then wash the dirty things inside the belly cover, and finally brush the crab claws clean.

5. Scrubbed crabs are thrown into a clear water basin, and then washed together for cooking.