How long does it take for a crab to be steamed and how long can a crab be steamed before it can be e

When steaming crabs, steam them for at least another 15-20 minutes after boiling water, depending on the size of the crabs. Since crabs grow in silt and often carry some toxins in their bodies, in order to prevent these pathogenic microorganisms from invading the human body, crabs must be steamed thoroughly when eating.

Steamed crab is a kind of delicacy made with crab as the main material and minced ginger, salt, monosodium glutamate, etc. as seasonings, which has the characteristics of simple production, rich nutrition and good taste.

It is important to eat the gills, heart, stomach and intestines, which contain bacteria, viruses, sludge, etc.

1. Crab gills: The two rows of soft things that grow on the belly of the crab are used by crabs to filter the water quality, which is very dirty.

2. Crab intestines: There is crab excrement, and there are black things at the crab roe and crab meat.

3. Crab stomach: the triangular east and east of the crab roe.

4. Crab heart: The crab is hexagonal, and the thickest part of the yellow paste in the middle of the crab belly must not be eaten.

Crab cold, spleen and stomach deficiency should eat as little as possible, so as not to cause abdominal pain, diarrhea, eat can be dipped in ginger vinegar sauce, to remove its cold. In addition, people suffering from colds, stomach problems, and diarrhea should not eat crabs, otherwise it will aggravate the condition. People with high blood pressure, coronary heart disease, and arteriosclerosis should try to eat less crab roe to avoid high cholesterol.

In autumn, chrysanthemum crab fat is the best time for people to taste crabs. Crab is very nutritious, with several times higher protein content than pork and fish, and higher content of calcium, phosphorus, iron and vitamin A. But if you don't eat properly, it can bring damage to your health.

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 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. People will be poisoned when they eat it, and the common manifestations are nausea, vomiting, abdominal pain, diarrhea, and in severe cases, dehydration, convulsions, and even shock.

Therefore, never eat dead crabs.

1. Crabs are generally cooked after boiling water and steamed for 8-10 minutes.

2. When steaming and boiling crabs, be sure to recite the pot under cold water, so that the crab legs are not easy to fall off. Since crabs grow in silt and often carry some toxins in their bodies, in order to prevent these pathogenic microorganisms from invading the human body, crabs must be steamed and cooked thoroughly when eating. Depending on the size of the crab, it is advisable to steam for 8-10 minutes after boiling water, so that the meat is cooked but not too rotten.

3. In addition, due to the unique umami taste of blue crabs, there is generally no need to add seasonings when cooking, even if the water is steamed in white water, it is also full of umami, but sometimes it is accompanied by a fishy smell.

5. Put an appropriate amount of water at the bottom of the pot and steam in the steaming drawer for 15-20 minutes. It is not advisable to open the lid during the steaming process, and it is necessary to steam the journey thoroughly at one time, otherwise it will affect the taste of the crab Tips: In the steaming process, you can crush the ginger and dice it into vinegar, and after steaming, you can eat it in vinegar.

1. The weight of the crab is less than three taels, and the water is boiled and steamed for 15 minutes;

2. Steam the crab for 17 minutes between three and four taels;

3. The crab weighs more than four taels and steam for 20 minutes, generally the crab weight increases by one or two, and the time increases by about two minutes The time is not enough for the meat to be raw, the crab has a certain toxicity and parasites, and it is not easy to kill and destroy the toxicity and parasites if the time is not enough, but the crab will lose the delicious taste of the crab if the time is too much, and it is not easy to separate the meat from the shell, and it is more inconvenient to eat.

A small group of crabs breed entirely in freshwater, and they mostly inhabit the rocks of mountain streams. There are also a few crabs, such as ground crabs, that can adapt to life on land, burrowing in damp mud holes, and migrating to the sea during the breeding season. The vast majority of crabs are omnivorous.

Some crabs are carnivorous, such as pike crabs, which can prey on fish, shrimp and molluscs. A small number of crabs, such as the crab, scrape or filter feed on algae and organic debris.

Refrigerated: about 2 days. Seal the crab and store it in the refrigerator for about 2 days, but the refrigerated crab meat must be reheated before eating, so as to avoid eating cold food and causing physical discomfort.

Freezing: About 1 month. Seal the crab with a fresh-keeping bag and store it in the freezer of the refrigerator at a temperature of about minus 18 degrees Celsius to avoid the breeding of bacteria and other harmful substances, and it can be stored for about a month.

Because crabs are mainly protein-based meats. Whether it is dead or stored, it is prone to the production of sarcomobella. It's highly toxic.

It is more harmful to the human intestines and respiratory tract.

Suggestions: The suggestion is not to put it in the refrigerator, eat it if you can eat it in time, and throw it into the garbage heap if you can't eat it, don't be reluctant...

Cooked things must be eaten in time.

Steamed crabs are generally steamed for about 15 minutes. However, it also needs to be distinguished according to the size of the crab and the weather, and if it is cold, you need to wait for the water to boil before timing it:

: Generally, crabs with more than 4 taels can be steamed for about 15 minutes, and if the water is difficult to boil, you need to wait for the water to boil and continue to steam for 12 minutes to steam;

3-4 taels of crabs can be steamed for about 12 minutes, and if the water is difficult to boil, you need to wait for the water to boil and continue to steam for 10 minutes to steam;

Crabs below 3 taels can be steamed for about 10 minutes, and if the water is difficult to boil, you need to wait for the water to boil and continue to steam for 8 minutes to be steamed.

Steamed crab needs to be steamed for 10-30 minutes before eating.

Generally, after the steamer is boiled, the crabs below 3 taels should continue to be steamed for about 10 minutes, the 3 4 taels should continue to be steamed for about 12 minutes, and the crabs above 4 taels should continue to be steamed for about 15-30 minutes. In general, for every 1 tael increase in the weight of the crab, the steaming time increases by about 2 minutes. But the time should not be too long, the meat of the crab tastes less water, and the meat quality is not fast and tender, just because it is oversteamed.

Therefore, when steaming crabs, you must control the time and never over-steam them.

When steaming crabs, you generally don't need to look at the time, just look at the color of the crab through the lid of the pot to guess it, no discoloration means that the crab is not cooked, continue to steam, boil a pot of water, but don't put too much water, and then grasp the time to steam the crab after the water boils.

Morphological characteristics of crabs:

The hard carapace of the crab protects the crab from predators, but the carapace does not expand as the body grows. Therefore, the growth of crabs is interstitial, that is, after a period of time, the body will continue to grow after the old shell is shed. When the hard shell of the crab is removed, the body parts of the crab are protected by a layer of shells, shield-like shells that biologists call carapace.

The body of the crab is symmetrical and can be divided into frontal area, eye area, heart area, liver area, stomach area, intestinal area, and gill area. The two sides of the crab's body are connected by appendages. Appendages on the head, called antennae, have the sense of touch and smell, and some appendages have the function of mouths, which are used to tear food and put it in the mouth.

The crab thorax has 5 pairs of appendages called thoracopods. The pair of appendages in front of it have strong chelae that can be used for foraging, and the other four pairs of appendages are crab feet.

The above content refers to Encyclopedia - Crab.

15 minutes. Whether it is steamed sea crab or steamed river crab, it is best to steam for 15 minutes, because crabs grow in water, it is easy to be parasitized by parasites, parasites are not resistant to high temperatures, put crabs in a pot and steam for 15 minutes can completely kill the parasites in the crabs, and 15 minutes crabs just exude umami. <

The crab can be eaten after steaming for 15 minutes. Whether it is steamed sea crab or steamed river crab, it is best to steam for 15 minutes or more, because crabs grow in water, it is easy to be parasitized by parasites, parasites are not resistant to high temperatures, put crabs in a pot and steam for 15 minutes can completely kill the parasites in the crabs, and 15 minutes is not too long, and the crabs just exude the umami.

How to steam crabs 1. Clean the crabs with clean water.

2. Loosen the straps on the crab and place the crab in a steaming tray with its back facing down.

3. Put an appropriate amount of water in the steamer and put the steaming tray into the pot.

4. At the same time, sprinkle an appropriate amount of salt and ginger on the crab, cover the lid, and turn on the high heat.

5. After the water boils, turn the heat to low heat, continue to steam for about 15 to 20 minutes, turn off the heat, and you can do it.

Crab steamed in cold water or hot water It is recommended to steam it in cold water.

1. If steamed with hot water, the crab will not be cooked so completely, and there may be uncooked parts; And if it is steamed with hot water, the crab will struggle when it is suddenly heated, and excessive struggle will easily cause the crab legs to be torn off, affecting the integrity of the crab.

2. If steamed in cold water, the crab will be slowly steamed with the heating of the water, and the deliciousness of the crab will be locked by the water vapor during the steaming process, and the nutrients will not be lost.