Hairy crabs are very delicious food. People will begin to eat hairy crabs near the Mid Autumn Festival in China. The delicious hairy crab is a kind of food that many people like very much on the Mid Autumn Festival, but when eating hairy crab, we must see if it is fresh, because the dead crab can't be eaten.
How long does a hairy crab die
Hairy crabs are on the verge of death or as long as they are dead, it's better not to eat them,
Crabs are easy to decay after death. Crabs contain a substance called histidine. When they are dying or dead, histidine in crabs will decompose to produce histamine. Histamine is a toxic substance. With the prolongation of death time, more and more histamine and toxins are accumulated in crab body. This toxin is not easy to destroy. Even if it is cooked, do not eat it.
How to judge the death of hairy crabs
1. Pick up the bundled Yangcheng Lake hairy crabs and touch their eyes with their hands to see if they blink, which means they are fresh.
2. Take half a basin of water, put the bound crab into the water, and see whether the mouth of the crab spits bubbles, which means it is fresh. (remember, don't put the bound crab into the water for a long time, because the water is short of oxygen, and the crab will soon suffocate.)
3. Touch the crab claw and straighten the smallest crab claw to see if it bends naturally soon. If it bends naturally, it means it is fresh.
4. Untie the bound crab and see if it crawls. Crawling indicates that the crab is fierce.
Why can't dead river crabs eat
Crabs live in the water, like to eat dead fish, dead shrimp and other decayed animal carcasses, in the body of crabs will be infected with certain bacteria. In particular, most of the river crabs grow in dirty ponds, and there are a lot of bacteria inside and outside the crabs. Living crabs can expel bacteria from the body through metabolism; once the crabs die, the bacteria in their bodies will multiply in large numbers, decompose the crab meat, some bacteria also produce toxins, if people eat such crabs, they will cause food poisoning, common manifestations are nausea, vomiting, abdominal pain, diarrhea; severe cases can occur dehydration, electrolyte disorder, convulsion, even shock Coma, septicemia, etc.
How to deal with crab poisoning
If there is any discomfort after eating crab poisoning, you must immediately try to spit out the food from the stomach, if necessary, wash the stomach and catharsis, and take anti-bacterial and anti-inflammatory drugs and symptomatic treatment, and send the serious one to the hospital for treatment.
In addition, it can be used by the Folk: 15 grams of garlic, 25 grams of brown sugar added to the dregs of mashed garlic soaked in cold boiled water, once drunk, once every hour, three to four times in a row, with certain effect.