(1) Never eat or drink crabs raw.
Eriocheir sinensis often carries larvae eggs of Paragonimus and Vibrio parahaemolyticus. If it is not disinfected at high temperature, paragonimiasis will cause lung damage after entering the human body. If Vibrio parahaemolyticus invades human body in large quantities, infectious poisoning will occur, which is manifested as intestinal inflammation, edema, congestion and other symptoms. Therefore, the river crab should be steamed thoroughly, and generally it should be heated for more than 20 minutes after the water is boiled to play a disinfection role. Soaking in yellow wine and white wine alone can't kill the eggs of paragonimiasis larvae, so it's best not to eat drunken crabs.
(2) Don't eat dead crabs or dying crabs.
The body of crab is rich in histamine acid, and the rigidity period and autolysis period of crab are greatly shortened after death. Bacteria in crabs will multiply rapidly and spread to crab meat. The longer the crab dies, the more histamine and histamine-like substances will be in the body. After people eat dead crabs, histamine can cause allergic food poisoning, and histamine-like can cause vomiting, abdominal pain and diarrhea, which is harmful to our health.
In addition, the stored cooked crabs are easily contaminated by bacteria. So crabs should be burned and eaten now, not stored. In case they can't finish eating, the rest must be kept in a clean, cool and ventilated place, and must be cooked thoroughly when eating again.
(3) Don't eat with tea and persimmon.
When you go to any restaurant, you usually have a cup of tea at home. Don't drink tea if you want to eat crabs. Don't drink tea while eating crabs and within one hour after eating crabs. Because boiling water will dilute gastric acid, tea leaves will solidify some components of crabs, which is not conducive to digestion and absorption, and may also cause abdominal pain and diarrhea.
The crab fat is just when the persimmon is ripe, but the persimmon is cold, so be careful not to mix it. Because tannic acid and other ingredients in persimmon will coagulate crab meat protein, the coagulated substance will ferment and rot in the intestine for a long time, which will cause damage to gastric mucosa and cause symptoms such as nausea, vomiting, abdominal pain and diarrhea.
Beer is cold. Beer with crabs tends to have diarrhea. Therefore, it is best to choose yellow wine or white wine isothermal wine to eat with crabs.