1, the autumnal equinox season is the most tender and nourishing time for crab roe. Hairy crabs are precious aquatic products with tender and delicious meat. It is worth mentioning that the nutrients of hairy crabs are also very high. The content of protein must be several times higher than that of raw pork and fish, and it is rich in trace elements such as calcium, phosphorus, iron and vitamin D. ..
There are many kinds of crabs. There will be 600 kinds of crabs in China. Hairy crabs can be divided into two categories: talking about water and sea surface. The most famous freshwater crab belongs to "Yangcheng Lake Hairy Crab", alias crab, hairy crab and cold water crab, and it is generally perfected from September to 65438+ 10.
3. Sea crabs, flower crabs, etc. Sea crabs are common in the sales market, because they are everywhere, and the perfect season of sea crabs is different all over the country. Generally speaking, from south to north, March-May and 9- 10 are the peak seasons for production, and the Liaodong Peninsula in Laizhou Bay produces more in April-May. Choose the right season to eat hairy crabs, and eat crabs that are fat and delicious; Other seasons are thin and tasteless.
How to choose
1, look at the crab shell.
The dark green light on the back of the shell is thick and strong; The back of the shell is light yellow, and most of them are weak.
2, look at the navel.
The belly button is raised, and a boat is fat; Most dents are not fat enough.
3. Look at the claws.
The place where the plush is scattered on the claws and feet is Lao Jian; However, if the claws are not plush, the body will be very soft.
4. Look at the charm.
Turn the hairy crabs around and look at the sky from the abdominal cavity. If there are thorns, they can turn back quickly, which is very attractive and can be accommodated. Can't turn back, the charm is poor, and the storage time can't be long.
5. Look at the male and female.
In the lunar calendar, female crabs are selected in September and male crabs in October. The female crab eats yellow and the male crab eats cream. Pick the mother crab and you can see that there are many layers under its round navel. Generally, there are three layers, delicious, full of yellow and oil; When it grows to the fifth floor, the yellow is very hard; Pick a male crab and you can see whether the upper and lower pieces of its triangular navel turn yellow. When it becomes Huang Shi, there is usually cream. If it turns white, it may be an empty shell crab without cream.
Points to pay attention to when eating hairy crabs
Don't eat hairy crabs that have passed away.
Before and after the death of hairy crabs, histidine dissolution in their bodies will cause nitrosamines. Nitrosamine is a harmful chemical substance. The accumulation of nitrosamines in hairy crabs will increase with the increase of their death time, and the side effects will be greater. More importantly, nitrosamines will not be destroyed even if hairy crabs are cooked.
Raw hairy crabs cannot be eaten.
Hairy crabs are very easy to parasitize paragonimiasis, and eating crabs raw will make paragonimiasis enter the human body. In addition, hairy crabs eat rotten things, and all kinds of bacteria and endotoxin will accumulate in their gastrointestinal tract. If eaten raw directly, it is very easy to cause poisoning.
Hairy crabs have to be eviscerated before they can be eaten.
Whether steamed or fried, before cooking, not only the hydrogen hairy crabs should be cleaned and tidy, but also the internal organs such as crab cheeks, crab stomach and crab heart should be cleaned and tidy. Among them, the crab gills grow on both sides of the crab body and are arranged in eyebrow-shaped strips, while the crab stomach is on the upper part of the crab body, and both the crab gills and the crab stomach carry many bacteria and unclean things. The crab heart is in the middle of the crab meat and firmly connected with the crab stomach. It tastes bitter and needs cleaning.
Not suitable for eating hairy crabs
1. Anyone with weak spleen and stomach should not eat or eat less hairy crabs.
Hairy crabs are cold, which can easily cause abdominal pain, diarrhea or indigestion after eating. In addition, patients with chronic gastritis and gastric and duodenal ulcers had better not eat crabs, because eating them is easy to relapse or aggravate the old diseases. If eating crabs causes abdominal pain and diarrhea, perilla frutescens 15g and 5 slices of ginger can be decocted to relieve pain and treat diarrhea.
2. Patients with cardiovascular diseases should avoid eating crabs.
Hairy crabs contain high carbohydrate, with 235 mg carbohydrate in100g crab fillet and 460 mg carbohydrate in100g crab meat. Patients with myocardial infarction, hypertension, arteriosclerosis and hyperlipidemia will eat foods with high cholesterol, which will lead to an increase in carbohydrates and aggravate the development trend of cardiovascular diseases. Therefore, eat less or no crabs, especially crab meat.
People with allergies should avoid eating crabs.
After this kind of people eat hairy crabs, certain crab proteins enter the body according to the intestinal cavity with improved permeability, resulting in allergic symptoms and a lot of histamine. , causing gastrointestinal smooth muscle spasm, angioedema, nausea, nausea, abdominal pain and diarrhea; Some will continue to cause measles or asthma. In addition, people suffering from allergic dermatitis, skin eczema, tinea, sores and other skin diseases should be careful to eat, because eating hairy crabs will aggravate the condition.
People who have a cold and fever are not suitable for eating hairy crabs.
The diet with cold and cold should be based on light taste. Hairy crabs with high-protein food are not easy to digest, and it is easy to make a fever or cold incurable for a long time or aggravate the condition after eating.