1, crab's stomach can't be eaten: crab's stomach can't be eaten, and it's dirty. After opening the crab shell, you will see a triangle in the crab yellow area, which contains a small mass of black substance, indicating that crab's stomach can't be eaten and must be thrown away.
2, crab heart: crab heart can not be eaten, crab crab heart grows in the middle of crab yolk, connected with crab stomach, it is best not to eat, so as to avoid parasites inside, safely throw away.
3, crab intestines: generally eating animal viscera will not eat intestines, and eating crabs is the same. You can imagine the shit in the crab intestines. If you eat it carelessly, you will feel sick. When eating crabs, you can directly take out the crab intestines and throw them away.
4, crab gills: crab gills are best not to eat, because crab gills are the dirtiest part of the crab, which contains a lot of bacteria and parasites, which is naturally unhealthy.