First, it is best to put the bought crabs in a basin full of water for two hours to spit sand, and then brush the crab's back shell with a toothbrush.

Second, brush the shell, and then continue to brush the crab belly. If there is a triangle on the belly, brush it with a toothbrush.

Third, then brush the crab mouth.

Fourth, brush the gap between the crab's foot and shell with a toothbrush.

5. Brush the gaps between the heels, feet and feet of the crab, and then brush hard. These places are particularly rich in bacteria.

6. Next, brush crab feet, big feet and small feet.

Seven, so carefully brush it three times according to the steps, clean it three times, and the crab shell will be brushed. Now let's gut and remove the horns from the crab's stomach.

Eight, remove the crab shell.

Nine, throw away the back shell, because the internal organs and crab hearts are on it. If there is crab roe, take away the triangle in the middle of the crab shell. If there is no crab roe, throw away the back shell.

Ten, remove the crab mouth.

XI. Then remove the crab gills and rinse them with clear water.

Twelve, crabs are washed and can be boiled and fried.