Crab lungs, crab gills, crab intestines, crab heart, crab stomach can not be eaten.

1, crab lungs: crab lungs are located under the crab's abdomen and are respiratory organs for absorbing oxygen and expelling carbon dioxide, but they are easily contaminated by excessive dust and dirt.

2, crab gills: crab gills can not be eaten, this is the crab's respiratory organs, will filter the dirt of the water, it is easy to exist in impurities.

3, crab intestines: crab intestines contain a lot of excrement and feces, these substances are dirty, need to be taken down when eating.

4, crab heart: the crab's heart is hexagonal, hidden in the middle of the crab yellow paste thickest place, more cold, so in eating need to take down.

5, crab stomach: crab stomach is usually hidden inside the crab yolk, shaped like a triangular bag, belonging to the digestive parts of the crab, so when eating crab, you need to take down the crab stomach.