Can I eat crayfish?

Can I eat crayfish? The answer is yes, but crayfish does contain a lot of bacteria and parasites in the head, but it is not as sensational as social rumors say that no one eats it in foreign countries and is used to treat sewage, as long as crayfish that have been properly treated and cooked are edible.

What problems should you pay attention to when eating crayfish?

1. Crayfish contain a lot of bacteria and parasites, but they are basically in the head. So be sure to cut off your head when eating. Do not try to save money and eat the head together. In view of the fact that most of the crayfish sold in most restaurants to save trouble are basically containing a head, be sure to remove the head before eating it.

2. The shrimp line must be removed. This part is the second dirtiest place after the head. Many restaurants also do not remove shrimp lines in order to save trouble, so they are advised to buy them home and cook for themselves as much as possible.

3. Wash the crayfish carefully and carefully. Crayfish sold outside, businesses can not give you particularly careful cleaning to save trouble, and many unscrupulous merchants will use shrimp powder to wash crayfish, the residual shrimp powder is quite harmful.

4. When eating cooked lobster, if you find that the tail of the lobster is straight, then these lobsters are dead shrimp, do not eat them. If it is bent and curled up, it means it is live shrimp, can be eaten, and has a certain degree of nutrition.

The last point is that the cooking time should be enough, not less than 20 minutes. Outside businesses in order to save fuel costs and time costs, a lot of cooking time is not enough, which has health and safety risks.

Healthy eating of crayfish

When it comes to crayfish season, many crayfish lovers can't wait to eat a bowl, but some people will have diarrhea and allergies after eating. Today, the editor told you how to eat crayfish healthily. we

After buying the lobster, it is best to keep it in clear water for 24-36 hours to make it spit out sediment and other impurities in the body. When processing lobster, the dirt in its two gills should be removed, because there are a lot of bacteria adsorbed in the Gill hairs. It is best to cut off the Gill and wash the shrimp shell with a brush. The roots of lobster claws are the most likely to hide dirt and must be cut off. Finally, it has to be brushed and washed before cooking.

Crayfish must be cooked thoroughly at high temperature to ensure that bacteria and parasites in the lobster are killed. Don't eat dead lobster. Because the lobster is a high-protein organism, there are many bacteria in the body. As soon as the lobster dies, the bacteria decompose immediately, and people eat it. It is easy to be poisoned and have diarrhea.

In addition, whether the lobster has been washed with shrimp powder can not be tasted by eating, but can be identified by observation. Crayfish washed with shrimp powder often look very clean and glossy. However, the corroded crayfish forceps are easy to fall off, and if there are generally few crayfish clamps on the table, shrimp powder is more likely to be used.

How to select and clean crayfish?

1. Select

The most important thing to choose crayfish is from May to October, when the crayfish is full of fat, and even the three sections on the big claws are elastic snow muscles stuffed from head to tail.

Crayfish is clear water is muddy water, a look at the back, red and clean, this is OK, and then open to see its belly hair and claws on the hair, if it is white and neat, basically clean water raised.

After all, crayfish eat humic animal carcasses, bacteria and toxins will only accumulate in the body more and more, so try to buy newly grown lobster, old lobster or red black or red with cyan, green lobster is bright red and not vulgar, has a natural and healthy luster. As soon as you touch its shell with your hand, there is no doubt that the hard iron is old, and the elastic ones like fingernails are just grown up to change the shell.

2. Cleaning and pruning

In fact, the lobster in the hotel only covers its fishy smell with 13 fragrances and other heavy odors. they may not wash the lobster correctly in order to save time and make the lobster look complete and beautiful.

① cut off most of the head shell of the crayfish and used scissors to remove the black rustling stomach pouch from the exposed head to the back.

Cut off the shell of the cheek on both sides of ②, and then cut off the whisker obliquely.

③ took the tail nail in the middle of his tail with his hand, pulled it out and pulled out the black intestines.

④ cut a knife on his back to make it taste better (this trick is optional, depending on everyone's technique)

⑤ uses a toothbrush under tap water to wash it up and down, left and right, be careful not to wash off the shrimp yolk, and then drain.

Food and drug supervision departments in Shanghai and other places have found out in some aquatic markets that stall owners decontaminate shrimp with the so-called "shrimp powder". Different "shrimp powder" has different ingredients, some are alkaline substances, some are citric acid and sulfite. The latter two ingredients are legal food additives, but there are still many unseparated ingredients in "shrimp washing powder". The use of this product will bring hidden dangers to consumers' health. There is even a risk of cancer, so crayfish bought on the market should be washed with clean water to avoid residues of harmful substances such as shrimp powder.

Nutritional value of crayfish

Crayfish are high in protein, about 18.9% more than most fish and shrimp. The amino acid composition of crayfish is better than that of meat. crayfish contains eight essential amino acids which are necessary for human body but cannot be synthesized or not synthesized in body, including isoleucine, tryptophan, lysine, phenylalanine, valine and threonine. it also contains a small amount of arginine in vertebrates, and lobster also contains histidine, which is also essential for young children.

The fat content of crayfish is only 0.2%, which is not only much lower than livestock and poultry meat, but also much lower than green shrimp and prawn, and its fat is mostly composed of unsaturated fatty acids necessary for the human body, which is easy to be digested and absorbed by the human body. and has the effect of preventing cholesterol from accumulating in the body.

Crayfish, like other aquatic products, contain essential minerals for the human body, including calcium, sodium, potassium, magnesium and phosphorus, and iron, sulfur, copper and so on. The total amount of minerals in lobster is about 1.6%, in which the contents of calcium, phosphorus, sodium and iron are higher than those of ordinary livestock and poultry, and also higher than those of prawns. Therefore, regular consumption of lobster meat can maintain nerve, muscle excitability.

Crayfish are rich in fat-soluble vitamins, vitamin A, vitamin C, vitamin D, land animals are slightly inferior at this point.

The uncomfortable crowd of crayfish

People with persistent diseases should not eat shrimp when they are getting angry; the elderly who suffer from allergic rhinitis, bronchitis and recurrent allergic dermatitis should not eat shrimp.

Prawns are wind-moving products, and those with skin scabies should not eat. People who are allergic to crayfish should not eat shrimp; gout patients should not eat shrimp, because lobster contains a lot of purine, easy to cause gout.