1, precautions for eating crabs
Avoid eating crabs raw: 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. In addition, dying crabs are not suitable for purchase.
Do not eat cooked crabs that have been stored for a long time: the stored cooked crabs are easily contaminated by bacteria, and crabs should be burned and eaten 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.
Crab is a food containing more histamine acid. Histamine acid in crabs left over overnight will be decomposed into histamine under the action of some microorganisms. Although heating in the pot can kill pathogenic microorganisms, it cannot destroy toxins and lead to histamine poisoning. So it is best to eat steamed crabs now, generally not more than 4 hours.
Fourth, don't eat too much: 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 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.
Avoid eating persimmons: Do not 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 don't eat 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 don't chew at will.
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. Be careful not to suck through the stomach of a crab with a triangular cone in the middle. If there is dirty sand in it, discard 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 hexagonal piece in the middle of the crab with a spoon handle, which is 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.
Who avoids eating crabs?
1, pregnant women: crabs have the effect of promoting blood circulation and removing blood stasis, which may lead to miscarriage. Chinese medicine believes that crab claws can give birth to a baby, so pregnant women or habitual abortion should be careful to eat.
2. Patients with liver diseases: People with poor liver, whether acute or chronic, should eat less crabs rich in protein and amino acids in order to reduce the burden of digestion and metabolism, give the liver more opportunities and time to recharge and prevent the occurrence of hepatic encephalopathy.
3. Renal insufficiency: No matter what causes renal insufficiency, when protein and amino acids are ingested, it will increase the renal load and accelerate the process of renal failure. Therefore, for patients with renal insufficiency, crabs can only be tasted.
4. Patients with hypertension, hyperlipidemia, diabetes and digestive tract diseases: Crab yolk or crab paste has a high cholesterol content, and people with hypertension, heart disease and arteriosclerosis should not eat more. Patients with diabetes and kidney disease often suffer from high blood pressure and should not eat more crabs. Patients with chronic digestive tract diseases such as cholecystitis, pancreatitis, gallbladder polyps, gallstones, gastritis and duodenal ulcer should also eat less or not, so as not to aggravate the condition.
5. Allergic constitution: crab is cold and wet, which belongs to "hair". Patients with skin diseases should not eat patients who were allergic to crabs in the past, or patients who had allergic diseases such as urticaria, allergic asthma and allergic dermatitis in the past. It is best not to eat them. Once an allergic reaction occurs, the loss outweighs the gain. After entering autumn, the proportion of children suffering from allergic diseases began to rise, and children had better not eat more at this time.
6, diarrhea, stomach pain, cold and fever: Because crabs are not easy to digest, people with diarrhea, stomach pain, cold and fever should not eat, so as not to aggravate the condition. People with deficiency and cold constitution, such as those who often have cold hands and feet, are prone to dizziness and fatigue. It is best not to eat them to avoid physical discomfort.
7, arthritis, gout patients: especially gout patients should avoid eating crabs, but also can not drink beer at the same time, otherwise it will aggravate the condition, or induce gallstones, kidney calculi and so on.
8, the elderly: the digestive function of the elderly is weakened, the crab is cold, and its high-protein food is not easy to digest, so it should be eaten with caution.
2. How to eat crabs is the healthiest?
Three Best Companions for Eating Crabs
Wang Guowei, director of the outpatient department of Beijing Hospital of Traditional Chinese Medicine, said that people with poor gastrointestinal function should eat less or no seafood. Chinese medicine believes that seafood is mostly cold, which can hurt the spleen and stomach and cause gastrointestinal diseases such as nausea, vomiting, abdominal pain and diarrhea. So it's best not to forget three best companions when eating seafood: ginger, vinegar and wine. For example, when eating crabs or hairy crabs, you must dip in Jiang Mo and vinegar. Because ginger has the functions of warming the middle warmer, dispelling cold and detoxifying, vinegar can dispel the fishy smell of crab meat, and wine also has the functions of sterilization, dispelling cold and promoting blood circulation. The combination of the three can not only protect the stomach, but also effectively treat dysentery caused by eating seafood.
It is best to eat crabs and drink two kinds of wine.
Crab is a cold food, and people with stomach deficiency and cold will have abdominal pain and diarrhea. If you can drink some wine with it, you can reduce or eliminate the discomfort after eating crabs. But the choice of wine is also very particular. A China wine and a Western wine are best paired with crabs.
As we all know, in the field of wine, the perfect match for seafood is often white wine, because the bactericidal effect of white wine is stronger than that of red wine. Westerners have long found that drinking liquor while eating seafood is not easy to cause food poisoning, and over time, they have formed the habit of eating seafood with liquor. This principle can also be applied to hairy crabs. The refreshing taste of liquor is also more suitable for delicious hairy crabs.
In China, it has been thought that yellow wine and crabs are a perfect match since ancient times. In fact, this habit is not without scientific basis. Although crabs are delicious, they are cold, and eating too much can easily hurt the stomach. Yellow rice wine has the effect of promoting blood circulation and warming the stomach, so it has always been considered as the best choice for eating crabs to dispel cold. Moreover, the sweetness of crab meat and the sweetness of yellow rice wine are extremely harmonious, and the taste is almost perfect.
Steamed crabs are the most nutritious.
Steamed vegetables are almost the most nutritious cooking method. When cooking, there is no loss of nutrients dissolved in the soup, and there is no overheating when cooking. The heating temperature does not exceed 100 degrees, and the thermal decomposition loss is small, the oxidation loss is small, there is no oil fume, and too much oil will not be introduced.
How to make it: Hold the two sides of the big cover at the root of the crab's two rows of legs by hand (no matter how you move this place, the crab can't catch your hand), and then brush all the places that can be brushed with a toothbrush. Brush as clean as possible before putting it into the container; Then put Jiang Mo into a small wine bowl, add cooked soy sauce, sugar, monosodium glutamate, yellow wine and sesame oil and stir. Take another small bowl and put vinegar for later use; Finally, cage the crabs, steam them on high fire 15 to 20 minutes, and take them out when the crab shells are bright red.
Don't drink pear juice after eating crabs.
Zhang, the attending physician of the Nutrition Department of Zhengzhou Third People's Hospital, pointed out that eating more pears in autumn is beneficial to moistening dryness and clearing heat, but don't drink pear juice when eating crabs. Because pears are sweet and cold, eating them together is easy to hurt the stomach. In addition, eat seafood in restaurants and don't order dishes with peanuts. Because the fat content of peanuts is as high as 45%, if you encounter a crab with cold sex, it is easy to cause diarrhea, especially for people with weak stomach, so you should eat it carefully.
Tip: Crab shells are very useful.
Song, deputy chief physician of the Department of Traditional Chinese Medicine of Zhengzhou Third People's Hospital, suggested that crab shells should not be thrown away after eating. Crab shell is also a good medicine.
For female dysmenorrhea, you can dry crab shells during menstruation, grind them with a food processor, and eat them with hot rice soup. Female postpartum headache is caused by blood stasis. Crab shell powder can be mixed with yellow wine to relieve pain to some extent.
Now there are many mosquitoes, and crab shells also have the function of killing insects and exorcising evil spirits. Some areas in the south will burn crab shell ash and smoke to kill mosquitoes.