What is the black jelly inside the crab?

That's the stomach of a hairy crab.

The black gelatinous substance next to the crab roe is the stomach of the crab, also known as the crab urine bag.

The stomach of hairy crabs is located in the middle of the crab roe, most of them are wrapped in crab roe, and the hairy crabs that are usually eaten outside have been fed with water for a long time, and the food in the stomach is completely digested and drained clean.

Therefore, the steamed hairy crab crab ** yellow, the stomach in the middle is also deflated into a light yellow glutinous film, which does not affect the consumption and is difficult to see, and many of the hairy crabs we buy ourselves are very fresh, and there is still a lot of food in the stomach, therefore, the black stomach can be seen in the middle of the steamed crab roe.

Precautions for eating hairy crabs

1. Dead crabs cannot be eaten.

Hairy crabs live in water, and in addition to eating live fish and shrimp, they are also particularly fond of microorganisms, which makes hairy crabs easy to breed bacteria. Live crabs excrete bacteria from the body through metabolism in the body, and once they die, the bacteria multiply, decompose the crab meat and produce toxins. If you eat dead crabs, it is easy to cause food poisoning.

Mild symptoms include nausea, vomiting, and abdominal pain.

In severe cases, dehydration, convulsions, and even shock can occur.

2. Raw crabs cannot be eaten.

Since hairy crabs have more bacteria in their bodies, they can only be completely killed by steaming for a long enough time. When cooking, do not be overly anxious and wait patiently until the hairy crab is fully steamed before eating. Generally speaking, the crab needs to be steamed for about 15 minutes (starting when the water is boiling), and it can be simmered for another 2-3 minutes to be safe.

3. Steamed and eaten.

After the hairy crab is steamed, it is best to eat it on the same day, not overnight. Because crabs are very prone to deterioration after cooking;At the same time, the flavor of the crab will also be lost a lot. Therefore, it is best to steam and eat hairy crabs freshly, if you need to stay overnight, put them in the refrigerator with a fresh-keeping bowl, and be sure to steam them again over high heat when you eat them the next day.

Inside the crab there is a black jelly-like stomach. The black paste inside the crab shell cannot be eaten, and the black paste next to the crab roe is the stomach of the crab, also known as the crab urine bag, which is located at the front edge of the back shell**, which is a bone bag shaped like a triangle, with dirty sand inside, close to the crab roe. When the crab is on an empty stomach, the stomach will appear smaller, and after a full meal, the stomach will swell, and there will be more black paste, which belongs to the normal category, and it can be eaten normally after removing the black paste.

Precautions for crab handlingLight salt water soaking: Rinse the dirt on the surface of the body, then soak it in light salt water for a period of time, and soak it in light salt water to let it spit out the dirt in the stomach.

When washing crabs, be sure to use force and not miss any parts. It is best to cook or steam the crab as soon as possible after washing, because the crab is dehydrated for too long and is easy to die, and the smell of the dead crab meat will become undelicious, and even if it is left for too long and then eaten, it will cause poisoning. If fresh live crabs are to be stored for a period of time, it is best not to store them after washing, so that they are more likely to die, and it is generally best to eat them in about 3 days after the crabs are out of the water.

Inside the crab is a white jelly-like crab paste.

Crab paste is mainly the accessory gonads and their secretions in males. After the male crab matures, the accessory gonads are abnormally developed, occupy the vast majority of the reproductive system, and are rich in protein, lipids and other types of nutrients, with high nutritional value and very delicious.

The integrity of crab paste has nothing to do with its taste and nutritional value. In the wild environment, in the ninth lunar month, the crab roe of the female crab grows the fullest; In October, the crab paste (crab oil) of male crabs grows at its thickest. Therefore, in the past, when eating crabs, there was a saying of "nine females and ten males".

Meaning: female crabs should be eaten in the ninth month of the lunar calendar, and male crabs should be eaten in the tenth month of the lunar calendar.

The ancients often used "crab roe", "fat paste" and "tender jade" to describe the deliciousness of crabs. This actually refers to different parts of the crab. "Crab roe" is a strip-shaped purple-brown leaf-like ovary in the female crab's body (which turns yellow when ripe); "Fat cream" refers to the colorless transparent gelatinous seminal vesicles of male crabs, which are orange-red lumps after cooking, and are known as "amber hidden in the chest".

"Tender jade" refers to chela meat, that is, the white and delicate crab meat in the carapace is like fat and jade. As for describing the crab as "spitting pearls", it is the foam formed by the crab spitting out carbon dioxide and water when it breathes in the water, which is crystal clear, which just proves that the crab is a living thing.

After the male crab matures, the accessory gonads are abnormally developed, occupying the vast majority of the reproductive system, and even lifting the shell of the crab. Accessory gonads are rich in proteins, lipids, and other nutrients, and are highly nutritious and delicious. In its natural state, crab paste is a bluish-white translucent jelly-like liquid; After steaming, it is translucent, sticky, and a little greasy gum.

The crab paste is very delicious, and it goes well with bibimbap on its own.

The black paste inside the crab is the crab stomach.

If it's near the eye, it's the crab's stomach, and the black one is sludge. In addition, the female crab will have the phenomenon of crab roe turning black, in fact, there is also a possibility that the fertilized eggs in the crab roe have completed development and have begun to transform into small crabs, black more melanin, anthocyanins, etc.

When we usually cook crabs, we generally need to put the crab in the pot and heat it for about 20 minutes before it is completely steamed, if there is a black paste inside the crab after steaming, it means that this is a mated crab, it does not contain harmful ingredients inside, and it can also be eaten with confidence.

Precautions for steamed crabs

Steamed crab best reflects the deliciousness of crab. Some people say that the method of steaming hairy crabs is very simple, and it is good to buy it and steam it, but in fact, the crab steaming time should be correct, the steaming time is too short, the crab is not cooked, it is easy to have diarrhea, and the steaming time is too long, and the crab meat will be old.

Steam about three taels of crabs for 10 minutes, steam crabs from four taels to half a catty for 12 minutes, steam crabs for more than half a catty for 14 minutes, and steam more than one catty for 20 minutes. According to this time, the steamed crab will be very tender, not too long, and not too short.

1. The heating time is not enough. With a live female crab, after heating for about 10 minutes, take out and cut it to see, the crab roe is black in the middle and yellow around the periphery, put it in the pot and continue to heat it for a minute or two, and it will be all golden brown when you take it out, so it should just be that the heating time is not enough.

2. The stomach of hairy crabs after they are full, that is, the black gelatinous solid in the crab roe. The reporter consulted Xuzhou Institute of Bioengineering.

Teacher Gu Kailang of the Department of Zoology. After reading the ** sent by the reporter, Mr. Gu said that the black gelatinous substance next to the crab roe is the stomach of the crab, also known as the crab urine bag, which is located at the front edge of the back shell**, which is shaped like a triangle.

The bony packet contains dirty sand, which is close to the crab roe. Generally crabs on an empty stomach.

After eating, the stomach will appear smaller, and after a full meal, the stomach will swell and look more black gelatinous, but this is a normal category, and it can be eaten normally after removing the black gelatin.

3. After the female crab mates, the boundary between yellow and black is obvious. Crab roe is the ovaries and digestive glands in the body, and when the crab roe becomes larger and brightly orange, it means that the gonads of the female crab have matured, and at this time, it is the crab eggs that are produced and excreted from the body, and the egg cells that remain in the gonads in the body.

It is still part of the crab roe. Crab roe is not the egg of a crab, but the adult and crab eggs are basically the same.

What is the black one in the middle of the crab roe.

The black gelatinous substance next to the crab roe is the stomach of the crab, also known as the crab urine bag, which is located on the front edge of the back shell**, which is a small bone bag shaped like a triangle, with dirty sand inside, and is close to the crab roe. Generally, when the crab is on an empty stomach, the stomach will appear smaller, and after a full meal, the stomach will swell, and it will look like there is more black gelatin, but this belongs to the normal category, and it can be eaten normally after removing the black gelatin.

How to eat crab roe.

Preparation of crab roe tendons.

1. Cut the washed pig's trotter tendons into long slices, put them in boiling water and remove them thoroughly, and drain the water;

2. Slice the ginger, cut the green onion into short sections, and mince the garlic;

3. Add peanut oil to a wok.

When it is 60% hot, add sugar.

Sauté until blood-red;

4. Pour the pork trotter tendons, green onions, and ginger slices into the pot, fry them until they are colored, add soy sauce, 250ml of clear broth, and rice wine to a boil and then move to a slight fire and simmer;

5. When the soup is left 1 3, take out the green onion, don't use the ginger, thicken it with wet starch, and add monosodium glutamate.

Stir the scallion oil and put it on a plate**;

6. Put peanut oil in the wok, put it on medium heat until it is 60% hot, add green onions, ginger and minced garlic to fry the fragrance, then pour in the crab roe and stir-fry a few times, then cook in soy sauce, rice wine, monosodium glutamate, turn it evenly, and put it around the hoof tendon in the plate.

There are several cases:

Soft-shell inner membrane. The shell of the hairy crab is made of minerals, and as it grows, it will molt and replace, and the new shell is formed under the old shell, and it is in the state of the inner membrane of the soft shell at the beginning, and the color is pitch black, this kind of hairy crab is directly steamed, and the inner membrane will be covered on the crab roe, which looks like the crab roe turns black and can be eaten.

Crab roe to be produced. People who often eat their own steamed crabs know that only the female crab will have the phenomenon of crab roe turning black, in fact, there is also a possibility that the fertilized eggs in the crab roe have completed their development and have begun to transform into small crabs. In fact, it is the fertilized egg of the crab, that is, the crab roe to be laid.

This is only the case for female crabs. But it doesn't matter, it's edible, and when you steam it, it will disappear after a little longer.

Contaminate. The crab itself is the disposer of freshwater pollution, which can effectively remove the silt and stains in the freshwater, and these stains will enter the body of the crab, most of which are gathered in the gills, crab heart, crab stomach and other positions, but if the crab dies in advance and then steamed, the pollutants will spread to the crab roe, crab meat and other positions, and the crab roe will turn black, and this crab can not be eaten.

The black in the middle of the hairy crab roe is the crab stomach.

The stomach of the hairy crab is located in the middle of the crab roe, most of them are wrapped in crab roe, the hairy crabs that are usually eaten outside have been fed with water for a long time, and the food in the stomach is completely digested and drained cleanly.

What is the black jelly in the middle of the crab roe? The black jelly in the middle of the crab roe means that the heart of the crab roe, all the hearts, the heart will not be in that jelly-like thing, so it is also very nutritious.

The black jelly-like thing in the middle of the crab roe should be the stomach of the crab, and it should be picked out and thrown away when eating the crab.

1.Heating time is not enough to cause 2The stomach of a hairy crab after it has been fed, i.e. the black gelatinous solid in the crab roe. After removing the black gel, it can be eaten normally. 3.Produced after mating with a fertilized female crab, the boundary between yellow and black is obvious.

The black stuff in the middle of the hairy crab roe can't be eaten. The black substance in the middle of the hairy crab roe is the crab stomach, which also contains food residues such as sand, insects, and aquatic plants, which is very unclean and hygienic, and is not recommended to eat; However, these substances are in the stomach, and removing the crab stomach does not affect the consumption of crab roe. Click to go to [] to view details.

1. Crab gills: that is, two rows of soft things that grow in the abdomen of the crab like eyebrows, commonly known as crab eyebrows, are the respiratory organs of crabs, used to filter water quality, and are very dirty. Don't eat the triangular crab white under the gills either;

2. Crab stomach: The triangular bun hidden in the crab roe also has crab excrement. Hide in the pile of crab roe on the crab lid, eat the crab roe and discard it;

3. Crab heart: also called crab hexagonal board. It is hexagonal in shape and is hidden in the middle of the crab belly where the yellow paste is thickest.