1. Crab heart: crab heart long in the middle of the crab meat and crab meat and crab yellow position, at the same time with the crab stomach is connected to the crab eat crab yellow is very easy to even crab heart together with the food, the crab heart is the parasites parasites in one of the main areas, and the taste of the extreme cold, can not be eaten.

4. Crab intestines: crab intestines and other animal intestines, the same, loaded with crab feces, but also the crab stomach and navel connected to the pipeline, very dirty, when you open the crab shells will generally be pumped directly off, but there are also in the extraction process was pulled off, resulting in some of the crab intestines remain inside the crab roe.

3. Crab stomach: crabs are omnivores, in the water in addition to some zooplankton, aquatic plants, but also eat decaying animal carcasses, microorganisms, so the crab stomach is very dirty, can not be eaten.

4, crab gills: gills is the crab's respiratory organs, because it is underwater breathing reason gills filter out a lot of impurities, so that is very dirty, but also the main area of parasites, can not be eaten