Hairy crabs live in shallow water and need oxygen all the time. Therefore, hairy crabs have a comprehensive and developed respiratory system in their bodies. We call this part the parotid gland, that is, the crab gills. Hairy crabs can breathe freely in the water through the crab gills. Because of the need for filtration, the parotid gland is very dirty, and it is also the main area where parasites live, so it is inedible.

Location: After opening the crab shell, you will see two rows of gray soft tissues, which are crab gills and need to be removed before eating.

2. Crab stomach

The omnivores of hairy crabs eat everything, except small fish, shrimps and aquatic plants in the water, but also rotten animal carcasses and microorganisms. Therefore, the crab's stomach is very dirty and can't be eaten.

Location: Open the crab shell. There is a triangular black thing in the crab yellow area, which is the crab stomach. You should pick it off when eating.

3. Crab heart

Crab heart, commonly known as hexagonal plate, grows in the middle of crab yolk of hairy crabs and is connected with crab stomach. When eating crab yolk, it is easy to eat it together. Crab heart is not very clean, and it is one of the main areas where parasites live. It is extremely cold and inedible.

Location: When you open the crab shell, you can see a layer of black film, and the white flaky crab heart is between the yellow paste and the black film, so you should throw it away when eating.

4. Crab intestines

Crab intestines contain the excrement of hairy crabs, which is the pipe connecting the stomach and navel of crabs. Generally, they are directly removed when the crab shells are removed, but some of them are pulled off during the extraction process, resulting in some crab intestines remaining in crab roe, which needs to be removed before eating.

Specific location: after breaking the crab, I saw black pipes at the crab yellow and crab meat.

5. Crab shell

Although the shell of hairy crabs is rich in calcium and phosphorus, it is very hard, and people's stomach and digestive system can't stand the food friction with this hardness and it hurts their stomach, so they need to throw it away.