How to kill live crab:
1. Turn over the crab back side.
2. Use a stick/ chopstick target onto the triangle peak there stab it hard.
3. Sooner, the crab will be dead after that.
4. Remove crab shell and dump away all inner visceral.
5. And then apart crab clamp and legs with body.
6. For ease to eat, use cleaver crack off the surface of the crab clamp by the way.
7. Use clean water rinse off the cut crabs.