It must be the kind of professional refrigerated hairy crabs that can be eaten. You know, the kind in the freezer.

Household refrigerators are only routinely frozen, which will lead to changes in the texture and flavor of hairy crabs, such as severe dehydration of muscle tissue after freezing and reheating, and severe loss of juice, which will lead to poor taste; At the same time, the characteristic flavor of hairy crabs is weakened, while the bad flavors such as "overheated taste", ammonia taste and fishy smell are aggravated, so it is best not to freeze hairy crabs in household refrigerators.

Crabs are salty and cold, and they are scavengers, so they must be dipped in Jiang Mo vinegar juice to dispel cold and sterilize, and should not be eaten alone; The gills, sandbags and internal organs of crabs contain a lot of bacteria and toxins, which must be removed when eating; Immature crabs such as drunken crabs or pickled crabs are not suitable for eating, and should be steamed and cooked before eating; Cooked crabs that have been stored for too long are not suitable for eating; It is not suitable to eat with tea, and avoid drinking tea water when eating crabs and within 1 hour after eating crabs; Crab fertilizer is the season when persimmons are ripe, so attention should be paid to avoid mixing crabs and persimmons; Attention should be paid when choosing crabs: they must be alive and flexible. After turning over crabs by hand, they can turn over immediately, and good river crabs can keep spitting and making noises; Crab cleaning: firstly, pour a small amount of white wine into the crab bucket to remove fishy smell. When the crab is in a slight coma, use the back of a spatula to stun the crab, quickly grasp its back with your hands, and take a brush to brush the flat crab abdomen. Don't miss any corners. After checking that there is no silt, throw it into another bucket and rinse it with clear water. Avoid eating raw crabs and undercooked crabs. Although there is a saying that people eat crabs raw and live, it is not desirable. Crab meat is delicious and nutritious, but dead crabs should not eat it; Because crabs like to eat decaying substances such as animal carcasses, they often carry pathogenic bacteria and toxic substances in their gastrointestinal tract. Once they die, these bacteria multiply in large numbers. In addition, the crab also contains more histidine, which is easy to decompose and can produce histamine and histidine-like substances under the action of decarboxylase, especially when the crab dies, histidine decomposes more quickly, and the longer the crab dies, the more histidine accumulates in the body, and when histidine accumulates to a certain amount, it will cause poisoning.