I bought back the crabs that were alive, and they were left overnight, and some of them died, whethe

Do not eat dead crabs and unsteamed, cooked crabs. Eat live crabs and cook them thoroughly. Live crabs can excrete bacteria from their bodies through their metabolism. Once the crab dies, the bacteria in the body will multiply and decompose the crab meat, and some bacteria will also produce toxins, causing food poisoning.

Crabs contain more histidine in their bodies.

The longer the crab is dead, the more histidine accumulates in the body, and even if the dead crab is cooked, this toxin is not easily destroyed. In addition, there are lung fluke larval cysts and Vibrio parahaemolyticus in the body surface, gills and gastrointestinal tract of crabs, and if they are not sterilized at high temperature, lung flukes can cause lungs after entering the human body.

Damage. If Vibrio parahaemolyticus invades the human body in large quantities, infectious poisoning will occur, and symptoms such as intestinal inflammation and bleeding will occur. Therefore, crabs should be fresh, steamed and cooked thoroughly to avoid food poisoning.

If you eat spoiled crabs, you will have abdominal pain, nausea, diarrhea and other symptoms, and even septic shock in severe cases, which is life-threatening.

It is better not to eat dead crabs, in case poisoning is not in harmony with the body and the economy, it will be very bad.

Sea crabs can be eaten when they die. The so-called crab refers to river crabs, and sea crabs are called sea crabs, not crabs. Some people have heard that crabs can't be eaten when they die, and mistakenly think that they can't eat any crab when they die.

This is a misunderstanding. The crabs in the river are absolutely poisonous when they die, and the sea crabs in the sea are not called crabs, and the sea crabs are okay if they die and eat them. Of course, don't eat it if it's rotten.

Now that the conditions are better, I can eat live sea crabs. Of course, live sea crabs are fresh and the crab meat is tight. But dead sea crabs are not as delicious as long.

If you die, you can't eat it, and you must eat it immediately when you buy it, and you must eat it fresh

Don't eat dead crabs, eating dead crabs is easy to poison.

The crabs were left in the water overnight and died the next day, depending on the situation.

If the crabs have spoiled and have a peculiar smell, this is not edible, if they have just died, they are still relatively fresh, this is edible.

Can hairy crabs die if left overnight?

As long as the storage method is correct, hairy crabs will not die overnight. It is recommended to put it in the refrigerator to reduce the metabolism of the crab, and cover the hairy crab with a wet towel that wrung out the water. The temperature is relatively low under the condition of refrigerator refrigeration, which is more in line with the growth environment of hairy crabs, and if the hairy crabs are stored in the refrigerator, they can generally survive for 7-8 days.

Put the hairy crab into the refrigerator to keep it fresh, the temperature is about 10 degrees, don't be too anxious to freeze, how to put the hairy crab in the refrigerator is also particular, the stomach is down, can not be put upside down, and then cover with a wet towel to keep the crab itself watery and prolong the hairy crab.

When you eat it every day, choose the ones that are not energetic to eat, because if you are not energetic, you will not live for long, and the hairy crabs with vitality can continue to be preserved. (Touch the eyes of the hairy crab with your hand and eat it first if it is not sensitive.) ）

Remember not to put hairy crabs in the water when preserving. Hairy crabs should not get wet, just put them in a container and cover them with a wet towel. Try to choose hairy crabs with green shells, the crabs with green shells and yellow shells are not very fresh, and the storage time is short.

Tie it with a rope and put it in the pot, open the lid obliquely a little bit to breathe, and put it in the refrigerator, my experience is that it is recommended not to exceed three days, because after a long time, the crab will lose weight, and it will consume nutrients.

How to save hairy crabsHow to save live hairy crabs is to put them on dry ground, but the humidity should be a little higher, such as next to the kitchen sink. It is enough to put them in the water for 5 minutes every 2 days or so. The hairy crabs will be foaming at each other.

How to preserve live hairy crabs is also particular, not to say anything to put in the refrigerator, it is necessary to preserve live hairy crabs according to the type of hairy crabs, so that the preservation time will be long.

How do you keep live crabs overnight?

Store in a cool place.

1 Material: Crab.

Method: 1. Put the crab in a pot or bucket.

2. Then put a little water, the amount of water is slightly over the crab foot, not too much, just keep it moist.

3. Or you can also cover the crab shell with a damp cloth.

4. Then store it in a cool and ventilated place.

5. This method can generally be stored for about 2-3 days, and if it is well preserved, it can survive for a longer time.

Seafood can be said to be eaten in every household, and the focus on eating seafood is freshness, so the crab that was alive last night died, can it still be eaten?

Method steps.

1 6 Step by Step Reading.

This situation depends on the type of crab. Professor Chen Shunsheng, director of the Department of Aquatic Product Processing and Storage Engineering of the School of Food Science of Shanghai Ocean University, said that if it is a raw sea crab, as long as there is no peculiar smell and ensure that it is steamed thoroughly, it can be eaten.

2 6 Because sea crabs live in a deeper location, the food they eat is relatively cleaner than that of river crabs, and the amount of bacteria is less, and they are not easy to spoil.

3 6 In addition, the stomach of sea crabs is usually relatively hard, and even if the toxins are produced by the spoilage of bacteria, it is not easy to spread into the crab meat.

4 6But if it is a raw crab, it must be eaten alive, and it must be eaten freshly.

On the hermit crab's ** net, easy shopping, just waiting for you!

Advertisement 5 6 Because river crabs carry a large amount of bacteria, they are easy to spoil after death, and the toxins produced are easy to spread into the crab meat.

6 6 Actually, in general, everything you eat should be fresh, healthy, and safe, after all, the body is your own, and you should cherish it.

The crab is dead for a day and cannot be eaten. Crabs love to eat rotten food, so it accumulates a lot of bacteria in its body. If the crab dies, the bacteria inside will multiply, and the proteins in its body will also breed bacteria, and the bacteria may produce toxins.

If a person eats a dead crab, it will cause poisoning, vomiting, abdominal pain, diarrhea and other symptoms. The crab is dead for a day and cannot be eaten. Crabs love to eat rotten food, so it accumulates a lot of bacteria in its body.

If the crab dies, the bacteria inside will multiply, and the proteins in its body will also breed bacteria, and the bacteria may produce toxins. If a person eats a dead crab, it will cause poisoning, vomiting, abdominal pain, diarrhea and other symptoms. The crab is dead for a day and cannot be eaten.

Crabs love to eat rotten food, so it accumulates a lot of bacteria in its body. If the crab dies, the bacteria inside will multiply, and the proteins in its body will also breed bacteria, and the bacteria may produce toxins. If a person eats a dead crab, it will cause poisoning, vomiting, abdominal pain, diarrhea and other symptoms.

Dead crabs are not to be eaten.

When the crab is dying or dead, the hidoxylic acid in the crab's body will break down to produce histamine. Histamine is a toxic substance, as the time of death prolongs, the accumulation of histamine in the crab's body increases, and the poisonous gas becomes larger and larger, even if the crab is cooked, this toxin is not easy to destroy. Therefore, never eat dead crabs.

Hello, I bought it back and it was alive, and I died the next day, if it wasn't for a long time, there was no peculiar smell, and I could eat it, and I could throw it away if I didn't worry.

Eating crabs is generally cooked, which is to ensure that its nutrients are intact and not lost. So if you bought it alive the first day and died the next day, I think you can eat it, because you just died in the process. Uh, the basic nutrients are not destroyed.

Dangers of eating dead crabs:

2. In fact, the poison hidden by the Dead River crab is far from this. Crabs also contain more histidine, which is easy to decompose and can produce histamine and histamine-like substances under the action of decarboxylase. Especially when the crab dies, the histidine decomposes more rapidly, the longer the crab dies, the more histamine accumulates in the body, and when histamine accumulates to a certain amount, eating it will cause poisoning.

The crabs bought died and could no longer be eaten.

Dead crabs produce large amounts of histamine in their bodies. Histamine poisoning occurs when humans eat dead crabs. Because histamine is an allergic poison, people who are allergic to histamine can cause a reaction even if they take a bite.

For example, after eating a dead crab for 10 minutes and 3 hours, symptoms will appear, such as redness of the cheeks, flushing of the chest and the whole body, and conjunctival hyperemia of the eyes, as well as headache, dizziness, chest tightness, general fatigue and irritability.

Another important cause of poisoning in dead crabs is bacterial infection. Once the crab dies, bacteria inside and outside the body multiply, breaking down the crab meat and producing toxins. Comparatively speaking, the risk of bacterial infection is higher, and people are also more likely to develop bacterial infections after consumption.

It depends best on the situation ... The recommendations are as follows:

1. According to the living habits of crabs, dead crabs are not recommended to eat. Crabs love to eat rotten food, and pathogenic bacteria and toxic substances accumulate in their bodies. Dead crabs can quickly grow a large number of bacteria in their bodies, so they should not be eaten, especially in hot weather.

2. In terms of taste, the crab loses its original umami after it dies. There is also a histidine substance in the crab's body, histidine is easy to decompose, histamine and histamine-like substances can be produced under the action of decarboxylase, and the midgut gland will quickly fall apart after the crab dies, and the histidine and digestive enzymes in it will decompose the crab meat. Therefore, the taste of dead crabs is strange and the taste is greatly reduced.

3. The crab itself is non-toxic, but after the crab dies and the crab's shell is damaged, the protein in the crab's body will breed bacteria, and the infected bacteria in its body will multiply in large numbers, and the bacteria may produce toxins. Dead crabs are likely to be poisonous.

4. The body of the crab is easy to carry heavy metals, after the crab dies, the midgut gland will soon fall apart, and the digestive enzymes in it will decompose the crab meat, and the intestinal gland is relatively easy to enrich heavy metals, and the heavy metals will also come out to produce pollution after it rots.

5. If the crab has not died for a long time, it can still be eaten if it is refrigerated, remember, it is refrigerated and not frozen, and the sea crab is better than the river crab, because the living environment of the river crab is worse and there are more bacteria.

Nothing to do for a short time.

It's not good for a long time.

In autumn, chrysanthemum crab fat is the best time for people to taste crabs. Crab, the meat is delicate, the taste is delicious, and it is a precious aquatic product. Crabs are also very nutritious, with protein content several times higher than pork and fish, and higher content of calcium, phosphorus and vitamin A.

Autumn crab is delicious and nutritious, but it can cause health damage if eaten incorrectly.

Eating dead river crabs can be poisoned.

When a crab is dying or dead, the hidooxyacids in the crab's body break down to produce histamine. Histamine is a toxic substance. As the time of death prolongs, the crab body accumulates more and more histamine, and the poisonous gas becomes more and more powerful, and even if the crab is cooked, this toxin is not easily destroyed.

To buy fresh river crabs, you should do "five looks" when choosing crabs: one look at the color; Second, look at the individual; Three look at the navel; Fourth, look at the crab hair; Five, look at the action. The color of the crab should be green back and white belly; golden-clawed yellow hair; The individual should be large and healthy; The navel should bulge outward; Crab hairs should be on the crab legs; Be agile and active.

Only those who meet these 5 criteria are easy to buy.

The old man said: Stinky fish and rotten shrimp can be eaten! As for the dead crabs, I advise you not to eat ......I've had this experience a few times:

When I was studying, I bought a lot of crabs and couldn't finish them in one meal, but five or six died the next day and I was reluctant to throw them away! When I got up on the third day after steaming and eating, my whole face was swollen. (The doctor prescribed me allergy medicine, it seems to be assamine?) ）

If you die in your own home, it won't be long and you'll be fine.

Dead crabs cannot be eaten and will be poisoned.

Dead crabs, it also depends on how to eat it, of course, it also depends on how long the crab has been dead, if it has just died not long ago, you can eat it, it is best to use it to make spicy crabs, the taste will not be lost, and it is also delicious, but if the crab has been dead for a long time, it has been half a day, it is best not to eat it, the crab that has been dead for a long time is poisonous!

It depends on the time of death. If you just die, it's cooked, it's okay. Otherwise, it won't work. There will be toxins.

Dead crabs should not be eaten.

Crabs like to eat rotting food such as animal carcasses, and often carry germs and toxic components in the stomach and intestines, and crabs also contain more histidine; After the crab dies, the bacteria multiply in large numbers, and the histidine is quickly decomposed into histamine and histamine-like substances, and human eating dead crabs will cause disease or poisoning, so dead crabs should not be eaten.

I'm from Qingdao and grew up eating sea crabs. Dead crabs rot quickly, the problem of just dying that day is not big, put it in the refrigerator, cook it tonight and eat it, don't stay overnight, the dead crabs that have been eaten overnight are easy to be poisoned.

Histamine is toxic, and even when cooked, this toxin is not easily destroyed.

The longer the time of death, the more histamine accumulates in the crab body.

So it's best not to eat dead crabs.

It can be eaten, but it is best not to freeze the crab in the refrigerator, as the crab will become thinner as soon as it is frozen.

It's best not to eat it.

When the crab dies, the hidoxylic acid in the body breaks down to produce histamine. Histamine is a toxic substance, with the prolongation of death, the crab body accumulates more and more histamine, the poisonous gas is getting bigger and bigger, and those who eat dead crabs may have vomiting, abdominal pain, diarrhea, etc. So it's best not to eat it, I hope it can help you.