1. Avoid eating raw crabs. The body surface, gills and gastrointestinal tract of crabs are full of various bacteria and parasites. When eating crabs, they must be steamed or boiled thoroughly, usually in water. After opening, it needs to be heated for another 15 minutes to achieve the sterilization effect. The traditional method of eating crabs is to steam them and serve them with ginger-vinegar sauce. This method of eating is scientific, which not only ensures that the bacteria and parasites in the crabs are killed, but also ensures that the original flavor of the crabs is not destroyed.
2. Avoid eating dead crabs. After a crab dies, the bacteria in its body will rapidly multiply and spread into the crab meat, decompose the amino acids in the crab meat, and produce a large amount of harmful substances. Therefore, eating dead crabs may induce Vomiting, abdominal pain, diarrhea.
In addition, it is best not to buy dying crabs. In addition, crab meat is rich in histidine. When the crab dies, some bacteria containing histidine decarboxylase can decarboxylate the histidine in the crab meat to form a large amount of histamine under appropriate conditions. Histamine is an allergenic substance that can dilate small veins and capillaries, promote increased secretion of mucous membranes and glands, lead to allergic symptoms, and may even cause circulatory failure in severe cases.
3. Avoid eating cooked crabs that have been stored for a long time. Cooked crabs that have been stored for a long time are easily contaminated by bacteria, so the crabs should be steamed and eaten immediately. In case you can't finish it, the remaining crabs must be kept in the refrigerator and eaten at the next meal. They must be reheated or steamed before eating. It is recommended not to eat overnight crabs. Although reheating can kill pathogenic microorganisms, it cannot destroy toxins and is still dangerous.
4. Four avoidances: crab gills, stomach, intestines, and heart. Do not eat the four parts of crab: gills, stomach, intestines, and heart. When the crab shell is opened, the gray-white strips and soft parts on both sides are the crab's gill strips. It is the crab's respiratory organ. It is in direct contact with the outside world and easily accumulates dirt and heavy metals.
The triangular part located in the front half of the crab shell and under the eyes is the crab stomach, and a black strip is the crab intestine. These two parts are the crab’s digestive organs, which contain food and metabolites, and also accumulate. Possibility of dirt. The crab heart, commonly known as the "hexagonal plate", is located in the middle of the crab roe or crab paste and is hexagonal in shape. It is considered to be the "coldest" part of the crab.
This is an important part of the circulatory system. There is a lot of blood left, and its blood composition is quite different from that of the human body, which can easily cause immune reactions.
5. Five things to avoid: Eat too much. As mentioned earlier, the protein contained in crabs and the cholesterol contained in crab roe are relatively high. Excessive consumption at one time is not conducive to human body digestion and absorption.
According to the recommendations in the "Chinese Resident Diet Pagoda" of the Chinese Nutrition Society, the appropriate intake of aquatic products is 40-75 grams (edible part) at one time, which is equivalent to 100-188 grams of crabs with shells grams, and preferably no more than 3 times a week. A 188-gram shelled crab is roughly equivalent to a 4-pound large crab.
People's Daily Online - You should keep in mind the five taboos when eating crabs. Don't forget your health when "crabs" taste delicious