Generally speaking, the taste of crabs is very delicious, and it's better not to eat after the crabs die. How long can't the crabs die? Do the crabs die and eat poisonous? Let's have a look!
How long does a crab die
Sea crabs can be eaten when they are dead and preserved without deterioration. River crabs can't be eaten when they are dead.
Once the crab dies, the bacteria in the body will multiply in large numbers, and quickly decompose the crab meat, and the histamine will be produced by the decomposition of histoxyacids. Histamine is a toxic substance. With the prolongation of the death time, more and more histamines are accumulated in the crab body, and the toxic gas is larger and larger. Even if the crab is cooked, the toxin is not easy to be destroyed. If people eat such dead 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.
What are the hazards of eating dead crabs
People who eat crabs, light nausea and vomiting, diarrhea abdominal pain symptoms.
Serious, in addition to nausea and vomiting, there will be dehydration, skin flushing, dizziness, palpitation, chest distress, blood pressure drop and other toxic symptoms.
Why do eating dead crabs cause poisoning
Crabs mainly live on dead fish and shrimps that are rotten in the water. In addition, crabs breathe with gills. There are sludge and weeds in the gill cracks. Therefore, there are many bacteria infected in the body. When crabs are alive, the bacteria can be discharged with the metabolism of the body. Once dead, the bacteria in the body will multiply in large numbers and decompose the crab meat. Some bacteria will produce toxins, which The crab like people are easy to be poisoned soon after eating.
How to clean crabs
(1) Saltwater immersion
The live crab bought should first wash the dirt on the body surface with clear water, and then soak it in light salt water for a period of time, so that the crab can spit out the dirty things in the stomach. During the soaking, pay attention to change the water more, until the water is clean. Then hold the back with your hand, and close to the edge of the plate in the air, so that the double pliers can just clamp the disc string.
(2) Liquor soaking
Let the crab soak in the wine for 5-10 minutes and take a full bath. Through the stimulation of wine, the stolen goods in the body can be discharged, and at the same time, the crabs can be drunk through the liquor. Wine can not only remove the fishy smell of crabs, but also make crabs lose their struggle, which is convenient for subsequent operation. Of course, if there is no white wine at home, you can use 45 degree warm water to burn it. When the water temperature is high, the legs and tongs of crabs will fall off. It must be realized by people who have cooked crabs. In this way, the crabs will not be scalded directly, which will affect the nutrition and taste of crabs. Put the crabs in the warm water, about 3-5 minutes, and the crabs will not move.