Crabs bought online are dead, can they still be eaten?

Crabs bought online are dead, can they still be eaten? I once bought a wave of hairy crabs online. After placing the order, the crab was received at noon the next day, and on the premise of not untiring, a series of operations were carried out to confirm the vital signs.

The rest of the crabs were all alive, except for one male, who was dying. However, I can't eat hot crabs in a hurry, so I still have to wait patiently until I get home from work in the evening. When I got home, the crab had unfortunately died.

The time of death is basically determined, that is, the evening before I get off work, although it is a pity that the dead crab can not enter the stomach, but the most important thing in science is rigorous and serious, I plan to further observe with the naked eye why the dead crab can not be eaten, whether there is a clear difference between the crab that dies naturally and the crab meat that dies by steaming, so the dead crab is a separate drawer, and the other crabs are steamed in the drawer. After all the crabs were steamed with red light, the shells of the crabs were broken separately, and the lungs of the dead crabs were obviously darker, and the crab meat was obviously looser, which made people lose their appetite when they saw it clearly.

After my husband and I feasted on the fresh crabs, I carefully removed the leg meat of the dead crabs and fed them to the Chinese farm.

Turtle. Four taels of hairy crabs, only eight thighs of meat were dismantled and fed to it. My turtle swallowed crabs from the beginning, and finally turned a blind eye and held on until it couldn't do it. So according to my research, turtles can definitely eat the meat of dead crabs, but as for people, they may eat bad stomachs.

But it's certainly not tasty. In my experience, dead hairy crabs can be eaten. There is a boundary between what can be eaten and what can not be eaten, and if the crab claws are open after steaming, don't eat them, at this time the crab roe is fishy and the crab meat is quite poor.

Live and dead crabs have the following characteristics after steaming: the crab claws are tightly closed, the crab meat is elastic and slightly fragrant, and the movable limbs of the crab claws can be pulled out directly to bring out the crab meat.

But this also depends on the physique, people with bad stomach, the elderly and children firmly grasp the line of eating only fresh crabs. Live crabs: After loosening the tie, use chopsticks to clamp, crabs can accurately clamp chopsticks or run away frantically.

After leaving the water, he has been foaming profusely, and the foam bursting sound is strong and regular. Half-dead crab: a small amount of foam or no foam, slow retraction of the eye stalk into the eye socket, and significant weakness of the limbs.

There is only a small number of health responses. Dead crabs: The eye stalk is extended all the time, and there is no retraction reaction.

No other life reacts. By the way: at least 70% of the hairy crabs in our inland cities, restaurants and supermarkets are dead on the ice.

The sea bass is 100% dead and placed on ice. I think it's obviously edible.

It is best not to eat this kind of crab, because dead crabs will produce a substance that causes serious damage to human organs, and after buying dead crabs, you should reflect with the merchant in time, or contact the platform to deal with it.

You can eat it, because the crabs bought online are wrapped in ice cubes, and the temperature is extremely low, so the taste of the crabs can still be guaranteed.

If the gastrointestinal tract is better, it can be eaten, but if the spleen and stomach are relatively cold, it is not suitable to eat.

When I bought it in the market, it was alive, and I added oxygen, 2 hours, will it die?

A: Death. There are several reasons for this:

1.Portunid.

It is a sea-born crab that needs seawater. If you put it in fresh water for a short time, you can live, but soon due to osmotic pressure.

The change will cause the crab body to absorb water and swell to death. The shell can be opened, and its spongy gills can be seen absorbing water and expanding.

2.After being oxygenated and sealed during transportation, the seawater is salted after heating.

The precipitation causes the sea water to deteriorate and become turbid, creating conditions for hypoxia.

3.The oxygen injected during transportation is too pure, that is, the pure oxygen and the concentration is too large, resulting in oxygen poisoning or the use of compressed air with less oxygen content to inject oxygen, so that the oxygen is quickly exhausted, causing breathing difficulties.

And death. 4.When selecting, pick up the fresh enough, and the fresh enough generally can't withstand long-distance transportation.

Usually causes 2 and 3 are more likely.

Now all I care about is can I eat it?

Answer: If sea crabs.

Just dead, the belly crab carapace is not brown or black, and it can be eaten. But be careful, because there is a risk of poisoning if you eat spoiled dead crabs. Floor owner cautious!

After 2 hours of purchase, of course, the crab will die, originally the crab is alive by the oxygen pump, as soon as it leaves the oxygen, it is not adaptable, of course it will die after a long time, of course the dead pike crab can be eaten, the crab that has just died you immediately cook it in a pot, the taste and meat quality are still the same as the live crab, we here buy crabs by the sea to pick the crabs that have just died, and the dead crabs will be sold very cheaply, provided that you can pick crabs.

Summary. Crabs can't be eaten when they die, which not only affects the taste, but may also cause some damage to our body. In general, it is best not to eat dead crabs.

Crabs are fond of eating rotten food, which accumulates bacteria and toxic substances in its body. Dead crabs can harbor a large number of bacteria in their bodies, making them unsuitable for consumption, especially in hot weather. In terms of taste, the crab loses its original umami after it dies.

Crabs can't be eaten when they die, which not only affects the taste, but may also cause some damage to our body. In general, it is best not to eat dead crabs. Crabs are fond of eating rotten food, which accumulates bacteria and toxic substances in its body.

Dead crabs can harbor a large number of bacteria in their bodies, making them unsuitable for consumption, especially in hot weather. In terms of taste, the crab loses its original umami after it dies.

It is not recommended to eat it. It's okay to just die for a while.

1. Crabs must not be eaten when they are bought and died.

2. Crab is a scavenger with strong immunity, eating a lot of bacteria and viruses, but they are suppressed by the crab's immunity, once the crab is dead, not even dead, just dying, bacteria and viruses will multiply in large numbers and breed some biological toxins. Because crabs like to eat decaying substances such as animal carcasses, their gastrointestinal tracts often contain pathogenic bacteria and toxic substances, and once they die, these germs multiply in large numbers; In addition, the crab body also contains more histidine, histidine is easy to decompose, can produce histamine and histidine-like substances under the action of decarboxylase, especially when the crab dies, histidine decomposition is more rapid, with the longer the crab dies, the more histamine accumulates in the body, and when histamine accumulates to a certain amount, it will cause poisoning. As long as you see the crab half-dead and unmotivated, it's best not to eat it.

3. If people eat such crabs, it will cause food poisoning, dehydration, electrolyte disorders, convulsions, and even shock, coma, sepsis, etc., and the common manifestations are nausea, vomiting, abdominal pain, and diarrhea.

4. Some people may ask, after the crab is cooked, isn't the crab still dead? Aren't you still eating dead crabs? Why can't crabs be eaten if they die naturally?

5. If the crab dies naturally, the toxins in the body will multiply, and these toxins will also decompose the crab meat, and for the crabs that are doing it themselves, the toxins in the body have been discharged, and they have undergone high temperatures, which effectively prevent the spread of bacteria and better play a role in killing bacteria.

6. And after the water is boiled, boil it for another 20 minutes, so that the bacteria in the crab meat can be killed, the crab tastes very delicious, but if it is a crab that dies due to improper preservation, it is better to send it directly to the trash, for your own health, but also for the health of your family.

7. Although the nutritional value of crabs is rich, and there are many particularities about eating crabs, crabs must not be eaten when they die. If you are a crab lover, you should keep in mind the precautions for eating crabs, so as not to affect your health.

8. How to choose crabs: When you leave the water, you will spit live crabs.

9. After the crab is obtained, it often causes an increase in lactic acid in the body because it wants to break free, which will cause the bacteria in the body to multiply rapidly and spread to the crab meat after the crab dies. Bacteria will break down amino acids in crabs, and then produce a harmful substance "histamine", causing allergic food poisoning; In addition, the substances that may be produced are "histamine-like", which can cause vomiting, abdominal pain, and diarrhea, so be careful when selecting.

10. When buying crabs, you must buy them alive, because dead crabs contain a certain amount of toxicity, which is very bad for our body. Because when the crab is dead, the histidine in the crab's body will decompose to produce toxic histamine, and the toxin produced by the crab will continue to increase with the time of death. Therefore, when buying crabs, you must choose live ones.

The crab you just bought dies and you can't eat it anymore. Dead crabs contain a lot of harmful substances, and eating them can seriously damage your health, so it is best not to eat dead crabs.

Dangers of eating dead crabs:

1. River crabs mostly grow in dirty river ponds, and like to eat dead fish, dead shrimp and other rotten animal carcasses in the water, so it is easy to be infected with bacteria, and generally crabs are stained with a large number of microorganisms inside and outside. When alive, the crab can excrete bacteria from the body through metabolism, and once it dies, the bacteria in the body will multiply in large numbers, decompose the crab meat, and some bacteria will also produce toxins.

2. Crabs contain more histidine, which is easy to decompose, and histamine and histamine-like substances can be produced 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.

3. Crabs contain a lot of protein, and after it dies, the proteins in the body will decompose ammonia. After the dead crab is ingested into the human body, the excessive amount of ammonia must be excreted through the body, which can cause health harm in this process.