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Now our living conditions are better, so the quality of our diet has also improved accordingly, in daily life, many families usually like to eat some seafood, we all know that seafood is relatively expensive, but the nutrition of seafood is very high. I found that in daily life, many people like to eat hairy crabs very much, we all know that hairy crabs are not cheap, and the most important thing about seafood is to eat umami, so it is best to buy fresh seafood when buying seafood, we all know that fresh crabs are not easy to store, so can live crabs be directly placed in the freezer of the refrigerator to freeze? In fact, it is possible to do this, but it is recommended that you do not do it, because if the crab is frozen, the taste will be greatly reduced.
Why is it not recommended to cryopreserve hairy crabs?
Although it is said that fresh crabs can be directly placed in the freezer of the refrigerator to freeze, but this practice feels too rough, and crab is a kind of aquatic product, the most important thing when we eat is to eat the umami of seafood, if you put it in the freezer and then cook, then the taste will be greatly reduced, and it will also make the meat fat, and the fishy smell of the crab that may be more recognized will be heavier, so it will lose the umami of the seafood, and it is best not to do this.
What methods are feasible to preserve hairy crabs?
In daily life, if you buy a lot of crabs at one time and can't eat them all, then it is okay to store the crabs in the refrigerator for 4 to 5 days, we only need to buy the crabs and do not need to clean the crabs, nor do we need to untie the ropes of the crabs, directly put the crabs in the refrigerator compartment, and then cover the back of the crab with a wet towel, under the temperature of the refrigerator, the crab will be in a state similar to dormancy, and in this case, It can last for days without dying. When we take the crab out and cook it again, we can still eat the crab very delicious.
What should I do if I have to store it for a long time?
If you want to store crabs for a long time, then there is no way to put the crabs in the freezer of the refrigerator, in this case, it is best not to exceed three months, but you must pay attention to it, it must be frozen when the crab is alive, if the crab has died, then it is recommended that you do not freeze and store it, because it is easy to produce histamine after the crab dies, and if we take the crab out to eat, it is very likely that there will be food poisoning. Causes abdominal pain, diarrhea and other symptoms.
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Crab knowledge.
Can hairy crabs be stored frozen.
It is not recommended to store live hairy crabs in the freezer. Because eating hairy crabs is to eat a "fresh", and after the hairy crabs are put into the frozen layer, because the temperature is below 0 degrees, they will freeze to death and are not fresh; In addition, after the raw hairy crab is frozen, the crab meat will shrink, and the next time you take it out to eat, the crab meat will become dry and not delicious.
The boiled hairy crab can be frozen, because the cooked hairy crab will not shrink when the crab meat is frozen, and in the environment of minus 4-24 degrees in the frozen layer, the bacterial and other microbial activities in the crab meat can be effectively inhibited, which can ensure that the hairy crab will not deteriorate for 1-2 days. And if you don't put it in the freezer layer, it will spoil in a few hours and you can't eat it.
Frozen cooked hairy crabs are generally recommended to be eaten within 1-2 days.
Because hairy crabs are high-protein foods, they are very easy to become a paradise for bacteria to multiply at room temperature, and they deteriorate very quickly. In the freezer layer of the refrigerator at minus 4-24 degrees, the reproduction and decomposition activities of bacteria are completely inhibited, which can ensure that hairy crabs will not deteriorate after 1-2 days.
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It's best not to, it's best to eat live and fresh, dead hairy crabs will have bacteria, hairy crabs themselves are aquatic animals, they will carry bacteria, and then freeze them in the refrigerator, friends with low immunity may have diarrhea after eating.
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Can be frozen. Hairy crabs, like sea crabs, need to be frozen during long-distance transportation, low temperature can inhibit the activity of fungi and parasites in crabs, but also can delay the degradation of their own proteins, can achieve freshness, almost no effect on its nutrients and taste.
Hairy crabs will not die if they are frozen for a short time, hairy crabs are cold-blooded animals, and when the temperature is low, there will be self-protective hibernation, if it is frozen for a short time, the time it stays in the ice for less than 24 hours, and most of the hairy crabs are still alive after thawing.
After long-term freezing of hairy crabs, if they are transported for a long time, they spend more than 48 hours in the ice, and almost all hairy crabs will die, and the cause of death is directly related to low temperature and lack of oxygen.
How to save hairy crabs:It is preserved using an ancient well. There are also that kind of stone ancient wells in our countryside, in which the water flow is relatively good, clean and cool, and there are a lot of small fish and shrimp for food, which is more suitable for preservation.
You can use a large frame or net to install hairy crabs, and you can directly put the hairy crabs into the ancient well, do not put them all into the water, otherwise the hairy crabs will suffocate and die of lack of oxygen.
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Hairy crabs can be frozen, hairy crabs need to be frozen during long-distance transportation, low temperature can inhibit the bacterial and parasite activities in the crab's body, and at the same time delay the degradation of its own protein, to achieve the purpose of preservation, so that the flavor of raw crabs remains unchanged.
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Hairy crabs can be frozen. It needs to be frozen during long-distance transportation, and the low temperature can inhibit the bacterial and parasite activities in the crab's body, while delaying the degradation of its own protein to achieve freshness.
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Hairy crabs can be frozen, and low temperature can inhibit the activity of fungi and parasites in crabs, and at the same time, it can also delay the degradation of its own protein, which can achieve freshness, and has almost no effect on its nutrients and taste.
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Hairy crabs cannot be frozen, if frozen, it is easy to make hairy crabs die, we generally say that dead crabs are not edible.
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Cryopreservation is not recommended. Hairy crabs are not tolerant to low temperatures, the suitable survival temperature is between 10-15 degrees Celsius, when the environment is lower than 7 degrees Celsius, they will begin to hibernate, and the freezer layer is usually more than ten degrees below zero, and if it is placed for too long, it will lead to the death of hairy crabs, so it is not recommended to freeze and preserve hairy crabs.
Because hairy crabs are not resistant to low temperatures, the suitable survival temperature is 22-28 degrees, when the environment is lower than 7 degrees, they will begin to hibernate, and the freezer layer of the refrigerator is generally about minus ten degrees, and if it is placed for too long, it will lead to the death of hairy crabs, so it is not recommended to freeze hairy crabs, they can be refrigerated in the refrigerator, or stored at room temperature.
Extended information: Hairy crab is a type of river crab, and the scientific name of river crab is Chinese mitten crab. In China, from the south of the Liaohe River to the Pearl River in the north, it is widely distributed on the long coastline, among which the hairy crabs produced by the hairy crabs of Taihu Lake, Gaoyou Lake and Yangcheng Lake hairy crabs in the lower reaches of the Yangtze River are the top grades, and the Yangtze River water system has the largest output and the most delicious taste. Generally speaking, hairy crabs specifically refer to the Chinese mitten crabs of the Yangtze River system.
In the past, hairy crabs produced seedlings in the coastal waters of the Yangtze River estuary, and after growing into juvenile crabs, they migrated against the Yangtze River and grew in the lakes and rivers in the lower reaches of the Yangtze River. The name of the hairy crab is ** in the Wu dialect.
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In order to keep the crabs fresh, some people put the live crabs directly in the refrigerator and freeze them, thinking that in this way they can eat very fresh crabs. In fact, this practice is taboo, if you put it directly in the refrigerator to freeze, the crab meat will become very chai. When steaming, the crab roe is also easy to flow out, losing the deliciousness of the crab meat, and the gains outweigh the losses!
But don't use it this way.
Therefore, when keeping the crabs fresh, they should be put directly in the refrigerator, but it is a big taboo. Below I will share with you a little trick for preserving crabs, using my method to preserve, live crabs are very fresh for 5 days and will not die. You can eat delicious crab at any time!
Only a few towels are needed to preserve the crabs. Wash the tied crab a little and rinse the surface with clean water.
Then take a towel, wring the water after wetting, the water on the towel should not be too much, but not too dry, first spread a wet towel on the refrigerator, then tie the crabs one by one, and place them on top of the towel.
After setting it up, take out another towel, wet it and wring it again, then put this towel over the crab and cover the crab completely.
If you preserve the crab in this way, you can ensure the survival of the crab, even if it is left for 5 days, it is still fine. If you want to leave the crab for a long time, take the towel out again every day and re-wet it again to keep the crab moist so that the crab does not die.
But try not to leave the crab for so long, because if the crab does not eat for a few days, it will consume its own nutrients. The more time the crab is left out, the thinner the crab will be, and the worse the taste will be. You can only put it for 2 or 3 days in this way, and it shouldn't be too long, even if you put these crabs alive for a week, but the taste is not as good as when you just bought them.
This method is best used for only two or three days, and the fat crabs should be eaten quickly, and don't wait for them to become thinner before eating!
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Answer: Live crabs can be frozen. Direct freezing at low temperatures can ensure the viability of live crabs and avoid the growth of a large number of bacteria caused by dead crabs. The nutrients in the frozen crab are not destroyed, and eating this frozen live crab can absorb the rich protein, amino acids, minerals and calcium ions, which can enhance the body's immunity while promoting intestinal peristalsis.
However, it should be noted that crabs themselves are cold in nature, and the cold nature is heavier after freezing, so it is not recommended to eat too much to prevent the formation of diarrhea.
Hairy crabs can be frozen, but the frozen crabs seen in supermarkets are quick-frozen in factories with special equipment, which can keep the flavor unchanged.
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Crabs are frozen or refrigerated.
Whether crabs can be frozen or not depends mainly on the following two scenarios:
1. River crabs, under normal circumstances, it is not recommended to freeze river crabs, they can be placed in the refrigerator room, and the temperature should not be too low, it is best to cover the surface of the crab with moist gauze, which can prolong the survival time of the crab.
2. Sea crabs, sea crabs can be frozen for a short time, because the freezing time process will cause sea crabs to deteriorate due to dehydration for too long, and the protein content of crab meat and crab paste is higher, so after deterioration, mold and yeast, bacillus spp., Pseudomonas spp. and other bacteria will be bred, and a certain amount of hydrogen sulfide will be released, and too much practical will affect physical health.
In summary, crabs can be frozen and preserved, and it is recommended that they should be stored for a short time and then eaten, and it is recommended that river crabs should be refrigerated for a short time, and dead river crabs should not be eaten after more than 1 day. How long can hairy crabs be kept frozen Hairy crabs are farmed in many places in China, among which Yangcheng Lake hairy crabs in southern Jiangsu are the most famous, and Yangcheng Lake is also the main production area of hairy crabs in China, many places in China will buy hairy crabs from here, these hairy crabs are frozen and transported to all parts of the country, therefore, the hairy crabs purchased back can also be frozen with a refrigerator, thawed before eating, and the hairy crabs can be kept fresh for 1 2 months.
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Hairy crabs can be frozen. Hairy crabs need to be frozen during long-distance transportation, and low temperature can inhibit the bacterial and parasite activities in the crab's body, and at the same time delay the degradation of its own protein, so as to achieve the purpose of preservation, so that the flavor of raw crabs remains unchanged.
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Hairy crabs can be frozen. Hairy crabs can be frozen directly, and when live crabs are frozen, they can be kept for a longer period of time. It is better to use live crabs except for dead crabs tied with ropes, it is not recommended to freeze dying hairy crabs, when the hairy crabs are about to die or have died, the acid in the hairy crabs will break down toxic substances, the longer the death, the more toxic it becomes, and this toxicity does not decrease with the temperature of cooking.
The time when the hairy crab is frozenFrom the perspective of taste and nutritional value, hairy crabs can be frozen in the refrigerator for 3-5 days, not more than a week at most. The temperature of the freezer layer of the refrigerator is relatively low, and many people like to put the food that they can't eat into the refrigerator to freeze and preserve, especially some meat foods, such as pork and pork ribs are more common, and hairy crab freezing is generally done when they can't finish eating.
Freezing and preserving hairy crabs can extend the edible life of hairy crabs, but the time of cryopreservation should not be too long, generally freezing for 3-5 days, and the cryopreservation of hairy crabs should not exceed one week at most.
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Hairy crabs can be kept in the refrigerator for a few days.
Live hairy crabs can be stored in the refrigerator for 2 to 3 days.
The live hairy crabs do not need to be brushed, tied with ropes, placed in the fresh-keeping layer of the refrigerator one by one, and then covered with a clean wet towel on the hairy crabs to ensure their humidity, the temperature is adjusted to 5 8, and the hairy crabs can survive for 2 3 days.
Is it OK to store hairy crabs in the refrigerator?
Hairy crabs can be stored in the refrigerator.
Refrigerator preservation is the most important means of preservation in life, hairy crabs can also be placed in the refrigerator to keep fresh, fresh hairy crabs can be stored in the refrigerator for a few days, and cooked hairy crabs in the refrigerator can also ensure that 1 2 days will not deteriorate.
Whether to refrigerate or freeze hairy crabs.
Store refrigerated for a short period of time.
Hairy crabs are not very many, they can be eaten within 2 or 3 days, they can be tied up directly, put them in the fresh-keeping layer of the refrigerator to keep them fresh, take them out before cooking, scrub them in the water, and then cook them.
Long-term storage frozen.
There are more hairy crabs, they can't be eaten in a short period of time, they need to be brushed clean and put in the frozen layer of the refrigerator for freezing treatment, this frozen hairy crab can be stored for a longer time, take it out before cooking, thaw it first, and then cook, there is not much change in taste, and the nutrients are well preserved.
Can hairy crabs be eaten when they die in the refrigerator.
Hairy crabs that are dead in the fresh-keeping layer cannot be eaten.
Hairy crabs carry more fungi and some parasites, although the fungus breeds slowly in the refrigerator, but the denaturation of amino acids in the hairy crab itself will still be carried out after death, and some toxic amino acids will be generated, which are not suitable for consumption.
Hairy crabs frozen to death in the frozen layer can be eaten.
Hairy crabs frozen to death in the frozen layer can still be eaten, the composition does not change, and the activity of fungi is also well inhibited.
Authentic Panjin River Crab.
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