Can the crab be steamed and eaten after it has been dead for a long time?

If the crab has been dead for a long time, whether it can still be steamed and eaten needs to be judged according to the specific situation of the crab.

If the crab dies for less than half an hour and the crab meat does not deteriorate, you can try steaming it before eating. However, if the crab has been dead for more than half an hour, or even a few days, and the meat has deteriorated, it is not recommended to eat it. Because after the crab dies, the bacteria in the body will multiply in large numbers, decompose the crab meat, and produce toxins, even if the crabs are steamed, the toxins cannot be eliminated, and adverse reactions such as food poisoning may occur after eating.

Therefore, when choosing crabs, one should try to choose fresh and vigorous crabs to ensure food safety and health.

Crabs that have just died within two hours are edible. At this time, the number of bacterial proliferation in the crab is not very large, and after high-temperature cooking, it can effectively kill the parasites in the crab.

and bacteria, so as not to cause excessive effects on the human body.

However, dead crabs for more than two hours are generally not eaten, and a large number of heat-resistant bacteria have grown in the crab at this time, and they cannot be completely killed after heating for more than 20 minutes, and may cause abdominal pain after ingestion into the human body.

Diarrhea phenomenon.

When the crab dies, it can't be eaten again after a long time, and it is easy to be poisoned after eating.

Try not to eat itIn this case, if you have just died for an hour or two, this should not be too much of a problem, you can eat it, you can cook it directly, if it is too long, then you should not be able to eat this anymore, this is easy to spoil the stomach, and it is easy to cause gastroenteritis.

Since hairy crabs are omnivores that prefer to feed on rotting food, they carry a lot of bacteria and viruses in their bodies. Live hairy crabs are able to compete with microorganisms and inhibit reproduction due to their own metabolism.

After the hairy crab dies, these microorganisms can use the rich nutrients to multiply rapidly, causing the hairy crab to spoil in a short period of time, and may have symptoms such as fever, vomiting, abdominal pain, and diarrhea after eating.

Can you eat a freshly dead crab?

It is the right time to eat crabs in autumn and winter, but experts warn that crabs that have just died or are about to die should not be eaten.

Crabs are not the same as fish, fish just die, but the meat of the fish can be eaten without spoilage, but not crabs, crabs are omnivores, with a lot of bacteria and viruses. The metabolism of live crabs can compete with microorganisms and inhibit their reproduction; After the crab dies, the microorganisms will use its rich nutrients to multiply rapidly, causing the crab to spoil and produce a variety of toxins. Food poisoning symptoms such as fever, vomiting, abdominal pain, and diarrhea may occur after eating.

In addition, there is histidine in crab meat, and after the crab dies, histidine will become histamine, and histamine is an allergenic substance, which can dilate blood vessels, resulting in allergic symptoms such as **, mucosal congestion and edema, urticaria, nasal congestion, runny nose, bronchial asthma, nausea and vomiting, abdominal pain and diarrhea, and in severe cases, circulatory failure. The crab is about to die or has just died, its inhibition ability is reduced, and this histamine and toxin will be produced, so you must not think that the crab is not dead or has just died and can still be eaten.

Crabs can't be eaten with anything.

Crabs are very delicious, and crabs are nutritious, but there are still many people who eat crabs will have nausea and vomiting, abdominal pain and diarrhea, because they eat crabs without paying attention, crabs can not be eaten with sweet potatoes, pumpkins, honey, oranges, pears, pomegranates, tomatoes, melons, peanuts, snails, celery, persimmons, rabbit meat, nepeta; Eating crabs should not be drunk, as cold drinks can cause diarrhea.

1. You can't eat cold drinks after eating crabs.

You can't drink cold drinks after eating crabs. Cold drinks such as ice water and ice cream are cold things that will lower the temperature of the stomach and intestines. Drinking cold drinks after eating crabs is sure to cause diarrhea. Therefore, you can't drink cold drinks when eating crabs, and you can't drink cold drinks immediately after eating crabs.

2. You can't eat persimmons after eating crabs.

You can't eat persimmons after eating crabs. It has been recorded in "Drinking and Eating". Crabs and persimmons are both cold things, so eating the two together is easy to hurt the spleen and stomach, and people with weak constitutions should pay more attention.

In addition, persimmon contains tannic acid, crab meat is rich in protein, the two meet, will coagulate into tannic acid protein, not easy to digest and hinder the digestive function, so that the food is retained in the intestine for fermentation, vomiting, abdominal pain, diarrhea and other food poisoning.

The crab is dead for two or three hours and then it is no longer edible.

After all, crabs are living creatures, and putting crabs in the refrigerator is to properly delay the eating time of crabs, and crabs can survive for about 3 days in the refrigerator, which is already a better way to store them.

Tie the crab's legs and feet, put it in a foam box and add water. The foam box can be placed in the freezer compartment of the refrigerator to freeze. When you want to eat crabs, just take them out and thaw them, so that the preservation of crabs can ensure the freshness of crabs to the greatest extent.

If you don't eat it right away, don't wash it with water, or the crab will die. If the indoor temperature does not exceed 15, there is no need to put it in the refrigerator. Under normal circumstances, it can be stored for 5 to 7 days, but if the storage time is too long, the crab will be thinner, and eating it within 3 days will not affect the taste.

Precautions for rearing crabs in the water.

If you buy too many hairy crabs, you can directly put them in the bathtub to raise them alive, the bathtub is smooth on all sides, which can ensure that the hairy crabs will not escape from prison, put an appropriate amount of water in the bathtub (no more than 1 3cm thick) to ensure the humidity of the hairy crabs, and then put some small fish, loaches, live shrimp, etc. as their food, which can be raised for 5 10 days, and can be caught and eaten at any time.

Tips: Hairy crabs raised live at room temperature must not be brushed in advance, brushing has great damage to hairy crabs and will lead to a large number of deaths.

Crabs are not hydrophilic, can not put crabs in the water, this will cause the death of crabs, in the case of reasonable preservation, crabs put some water to maintain humidity, can survive for about 10 days, some people raise aquatic products, crabs will survive longer.

If the live crab is frozen to death after being put in the cryoster, it can be eaten in a short period of time.

Take the freezer layer of household refrigerator as an example, its internal temperature can reach more than ten degrees below zero, put live crabs into it, although the temperature is too low will make the crabs freeze to death, but it is enough to inhibit the reproduction of bacteria, avoid the crabs from producing histamine and other harmful substances, and the nutritional value and meat taste contained in the crabs are frozen and preserved in a short period of time, there will be no deterioration, so the live crabs can be eaten in the short term after being frozen to death, but it should not be put for too long, so as not to spoil the crabs.

How long can frozen crabs last? In the case of rapid freezing and not thawing halfway, crabs can be stored for 3 months without spoiling.

The frozen layer of live crabs cracked spikes, if stored at home, must not be thawed in the middle of the cavity, otherwise the thawed crabs are very susceptible to the invasion of bacteria and other microorganisms, resulting in their deterioration, especially the resistance of the lung fluke cysts in freshwater crabs is very strong, even frozen dead crabs are prone to food poisoning, so the general frozen crabs in order to prevent thawing halfway, but also to eat as soon as possible, it is best to eat within a month.