Step 1: Kill the crab.

Put scissors or chopsticks into the crab's mouth, and the crab can die peacefully. At this time, if you untie the rope again, you won't be caught. But some crabs are deadly, and there are still some risks. The safest way is to cut off their pliers.

Step 2: separate the crab shell from the crab body.

Take the crab belly apart, and you can see the crab's baba. I suggest cutting this part out. Then put your thumb into the slit and break it hard, and you can separate the crab shell from the crab body.

Step 3: Treat the crab shell.

Crab's stomach is not recommended. The picture shows the belly of a crab. Because crabs are cold, removing the stomach, lungs and mouth can reduce the impact on the body. Then brush the crab shell clean with a brush.

Step 4: Deal with crabs.

The crab's mouth and lungs also need treatment. The crab mouth can be gently clamped with scissors, and then it can be broken. The crab lung and crab heart are circled in the picture. Just take it out by hand. Then use a brush to clean the limbs and crab body, and it will be handled.