The crab heart is a white hexagon, which is usually located under a black film in the center of the crab. Traditional Chinese medicine often says that crabs are extremely cold, and their hearts are the coldest, so they should not be eaten.

The remaining parts of the crab that cannot be eaten:

Crab stomach: Open the crab shell and see some crab roe on the shell. The crab stomach is hidden in the crab roe of the shell. Crab stomachs are very dirty and are not recommended for consumption. ?

Crab gills: After opening the crab shell with two rows of "small fans", the two rows of gray fan-shaped soft tissue on the crab's body are the crab gills. Crab gills are the respiratory system of the crab and should not be eaten. ?

Crab intestine: A black line from the crab stomach to the crab umbilicus. The crab intestine is located in the triangle that can be broken open on the lower abdomen of the crab. Open the triangle and you can see a black line connecting the top of the triangle to the crab body.

Extended information

Tips for choosing crabs:

First, look at the color. The back of the shell is dark green, and the body is generally thick and solid. The shell is yellow, and most of them are thin. Place the crab under the sun or a lamp for backlight observation. If the edge of the crab cover is opaque, it means the crab is plump. If the transparent gap is visible, the crab is relatively empty. ?

The second is to look at the abdominal umbilicus. If the navel is protruding, it will usually be full of fat, while if it is concave, the ointment will be insufficient. The more black the belly umbilicus is, the fatter the crab will be. Gently open the belly umbilicus and the yellow one will be faintly visible. For river crabs, there is a saying that "male crabs are eaten in the ninth month (lunar calendar) and female crabs are eaten in tenth month." The crab with a round belly button is a female crab, and the crab with a pointed belly button is a male crab. ?

The third is to weigh the priorities. Weigh the crabs in your hands. Those that feel heavy are fat and strong crabs, while those that feel light are inferior crabs that are shriveled and have less meat. Turn the crab belly up and flip it back quickly with its legs, which is healthy and fresh. ?

The fourth is to check the feet. The bristles on the crab legs are better. You can also pick up the penultimate leg to see if it is full. Crabs with hard legs that are difficult to handle are the fattest.

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