The body surface, gills and gastrointestinal tract of crabs are covered with all kinds of bacteria and sludge. Eat crabs through steaming and cooking. Generally, it can be disinfected by heating for more than 30 minutes after boiling.

Second, avoid eating dead crabs.

Buy dead crabs. Bacteria in the dead crab quickly proliferate and spread into the crab meat, decomposing amino acids in the crab meat and producing a large number of harmful substances. Eating dead crabs may cause vomiting, abdominal pain and diarrhea.

Third, avoid eating cooked crabs for a long time.

Stored cooked crabs are easily contaminated by bacteria, so we should burn them now. In case you can't finish eating, the rest must be kept in a clean, cool and ventilated place (preferably in the refrigerator). When eating, be sure to return to the pot and cook it thoroughly.

Fourth, avoid overeating.

Crab meat is cold and should not be eaten more. People with spleen and stomach deficiency and cold should pay special attention to avoid abdominal pain and diarrhea. You can usually eat one or two crabs, and it is best to drink a cup of ginger tea to drive away the cold after eating crabs.

Five, avoid drinking tea water

Avoid drinking tea and water when eating crabs and within 1 hour after eating crabs. Because boiling water will dilute gastric acid, tea will solidify some components of crabs, which is not conducive to digestion and absorption.

Six, avoid eating persimmons

Don't mix crabs and persimmons, because tannic acid and other ingredients in persimmons will solidify the meat protein in crabs, which may cause adverse reactions such as vomiting, abdominal pain and diarrhea.

Seven, avoid eating four parts.

The body surface, gills and gastrointestinal tract of crabs are covered with pathogenic microorganisms such as bacteria and viruses. So when eating, you must remove the crab's cheeks, intestines, heart (commonly known as hexagonal plate) and stomach (that is, the triangular bone bag with sediment inside).

Eight, avoid chewing.

When eating crabs, you should pay attention to four things to be removed after opening the lid: remove the crab stomach, that is, the triangular bone package in the crab lid, eat the crab lid first, dig out the crab stomach in the middle with a spoon, and gently suck out the crab yellow wrapped outside.

When eating crabs, pay attention to the four divisions after opening the lid. Be careful not to suck it in through the crab's stomach with a triangular cone in the middle, and discard it if there is dirty sand in it; After eating the crab cover, it's crab's turn. First, cut off the extra crab feet and mouth with scissors. Pick out a hexagon in the middle of the crab with a spoon handle, which is the part of the crab heart that should be discarded. There is also a crab intestine, which is a black line from the crab stomach to the crab navel; Crab cheeks, that is, two rows of soft things like eyebrows that grow in the belly of crabs, should be removed.