How to kill the blue crab?

Insert the knife into the heart of the blue crab, and the place where the tip of the stomach is facing is the heart. If the knife is inserted in the right place, the crab's claws and legs will fall off by themselves (a little lethal).

After a knife, the blue crab died and was unconscious. You can peel off two crab claws (to eliminate the threat).

Crab cheeks and the like are not needed.

After removing the gills, brush the position of the crab gills with a toothbrush. After brushing, cut them in half in the middle.

The sand sac of the blue crab is also the stomach. There will be a lot of sand in the blue crab. Be careful when peeling, don't break it and let the sand flow out.

Turn the sandbag over and you can take it out. After removing the sand sac, wash the inside of the crab cover with slow water.