Crayfish is a crustacean that lives in fresh water, similar to lobster. Its scientific name is red crayfish, or freshwater crayfish. In the northeast, the name of crayfish is Spinibarbus. Crayfish once became a pastoral pest in China because of its omnivorous growth speed and strong adaptability. The feeding range of crayfish mainly includes aquatic plants, algae, aquatic insects and animal carcasses. However, in recent years, with the efforts of scientists, this crayfish has gradually become a diet on people's tables. Moreover, more and more crayfish are propagated from the field to artificial breeding. But crayfish are harmful to the local ecology, so we must be careful in breeding to prevent them from escaping.

Crayfish is rich in nutrients and contains elements such as calcium, sodium, magnesium, aluminum, phosphorus, sulfur and copper. It is precisely because crayfish have strong viability that crayfish can still survive even in sewage or in areas affected by heavy metals. Moreover, he will carry all kinds of exogenous poisons and heavy metals, so generally speaking, we should try to eat crayfish as little as possible, or clean it up when eating at home. When buying crayfish, do you ask whether it is cultured shrimp or what shrimp? Ensure that the source of shrimp is clean and hygienic.

Recently, the price of crayfish has dropped from 20 to 30 yuan a catty to 10 yuan a catty. Everyone lamented that this was the realization of the freedom of crayfish. However, not all crayfish in all areas are ten yuan a catty. Moreover, according to the size, variety and growth environment of crayfish, the price of crayfish still fluctuates. So I haven't realized the freedom of crayfish yet, but I believe the price will come down again in a few days, and I should be able to realize the freedom of crayfish.

The price of crayfish has dropped, and many people will buy crayfish. Then let's learn how to choose crayfish. First of all, when choosing crayfish, try to buy live ones. Although dead crayfish are cheap, live shrimps have the freshest meat. Secondly, we should choose the one with high activity and buy the one with big head and soft and elastic shell. Moreover, he chose a bright red back, indicating that the sanitary environment of his place of origin has passed the standard, and this shrimp has just shed its skin and tastes more refreshing.

After buying lobster, put it in the water first. Add a little salt and a few drops of cooking oil, so it can be preserved for 2 to 3 days. Lobsters can spit out all the sediment in their bodies, so there is no need to pick shrimp lines when they are used. The existence of shrimp lines can ensure the quality of shrimp meat and make it more compact. There are many ways to make lobsters, such as braised prawns, spicy crayfish and sauce-flavored crayfish. According to your own taste. You can find relevant recipes to cook, and you must remove the head of the shrimp, because a large number of bacteria and parasites live in the head of the shrimp, and the cooking time should not be less than 20 minutes, so as to ensure that the lobster is mature and there is no bacterial residue.