The parts of the crab that you can't eat:
1. Crab stomach: it's the triangular-shaped bony sachet in the crab lid. Eat the crab cover part first, use a small spoon to pull out the middle of the crab stomach part, gently suck the outside wrapped with crab yolk clean. Be careful not to suck through the triangular cone-shaped stomach in the center, which is full of dirt and sand and should be discarded.
2. Crab heart: After eating the crab lid, use scissors to cut off the excess crab legs and mouths. Use the handle of a spoon to pick out a hexagonal piece in the center of the crab body, which is the heart of the crab and should be discarded.
3. Crab intestines, a black line leading from the stomach to the navel, should also be discarded.
4. Crab gills: two rows of floppy things that grow on the crab's abdomen like eyebrows and should be removed.
Notes on eating crabs:
●Eat fresh and live
After the death of river crabs, the bacteria inside the crabs will multiply rapidly and spread to the crab meat, which will make the eaters suffer from vomiting, abdominal pain, diarrhea and other symptoms. Therefore, river crabs should be eaten fresh.
●Steam and eat now
The best way to eat crabs is to steam and eat now, and in case you can't finish them, the rest must be kept in a clean, cool and ventilated place, and must be returned to the pot to be cooked and steamed again when you eat them.
●Steam and cook through
River (lake) crabs feed on animal carcasses or humus, so the crab's body surface, gills, and gastrointestinal tract are full of all kinds of bacteria and sludge. Some people get sick because they do not wash and brush the crabs, steam and boil them imperfectly, or because they eat drunken crabs or pickled crabs raw and eat the germs or parasites inside the crabs into their stomachs.