Why is there dark green in crabs when cooked?

After the crab is cooked, the water that is drained is green, indicating that the crab's yellow boil has flown away, and the crab itself is not fat. The crab roe that is not fat is weakly hydrophobic and dissolves when exposed to high-temperature water. It is recommended that when buying crabs, choose a good plumpness.

Organisms in water have a type of spore parasite. If the parasites enter the crab from the gills, they can parasitize in the intrahepatic bile ducts, causing bile outflow, which can cause the digestive glands and mucous membranes to turn green, i.e., crab roe to green.

Crabs should be eaten live and fresh, and if you cook the crab with dark green color, it should be a problem caused by seaweed on the crab and the like, if it is a dead crab, then don't eat it.

Look at the location, if there is green in the stomach, this is normal, and there is algae in what the crab eats. If the meat is green, don't eat it.

Crabs have dark green in them when cooked, and if the crab meat is dark green then don't eat it because the crab meat is generally white.

1. Parasites: Organisms in water have a kind of spore parasite. If the parasites enter the crab from the gills, they can parasitize in the intrahepatic bile ducts, causing bile outflow, causing the digestive glands and mucous membranes to turn green, i.e., crab roe to green.

2. Feed mildew: long-term storage of feed will breed many bacteria and molds. This toxic feed enters the crab and can cause the liver, digestive glands, and tissue fluid to turn green.

3. Abuse of veterinary drugs: Crabs are susceptible to various diseases, therefore, in order to ensure the yield and quality of crabs, farmers will add veterinary drugs to crabs. If too much veterinary drugs containing copper sulfate are used, a green liver will appear.

4. Deterioration of the water environment: The water environment of crab farming greatly affects the quality of crabs. Therefore, if the water resources are polluted with metal ions, the crab roe may turn green.

Habits: A small group of crabs grow and 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.

It seems that the crabs have not been cleaned up? The moss on his fur.

It should be the hair on the body, not unwashed.

Well, it turns out that there are so many things to pay attention to eating crabs, and everyone should have gained a lot of knowledge after reading it.

If it is a sea crab should be caused by not fresh, such a crab should not be eaten, no matter what kind of seafood, as long as it is not fresh, do not eat it if it smells peculiar, it is easy to be poisoned, the general symptom is diarrhea, if it is a freshwater crab, it may be a problem with water quality or a variety, and then it is not fresh.

The crab's liver is infected with parasites, causing the crab to bleed out while it is alive, staining the inside green.

The inside of the crab may turn green because the crab is not fresh or has died, or it may be infected by bacteria, so such crabs must not be eaten.

The crab turns green after steaming and peeling, and it is less likely to be drugged, and there is black mud on the crab gills, which is related to the water quality environment where the crab grows, and it is very likely to be caused by unsatisfactory water quality.

The best season to eat male crabs is around the Double Ninth Festival, and it will take about a month to wait, and it is currently the eighth month of the lunar calendar, which is the season to eat female crabs, but the meat of female crabs is not too full, if you want to taste good, you have to wait until after the fifteenth day of August of the lunar calendar.

The crabs we steamed out are white or yellow on the inside, and if the crab is green on the inside, then it is likely that the crab has been dried and contaminated.

In fact, there are many reasons why the inside of the steamed crab is green, and it may be that there are parasites in the crab, and the presence of parasites in the liver of the crab will cause the bile of the crab to flow out. As a result, it will turn green on the digestive membrane and mucous membranes!

There is also a possibility that when the crabs are raised, the keepers abuse some veterinary drugs. Because crabs are easy to get sick when raising crabs, people who raise crabs when there are various diseases, in order to ensure the yield and quality of crabs, will give crabs some veterinary drugs indiscriminately. If this veterinary drug is not formal, it contains copper sulfate.

This will cause changes in the liver of the crab, so that the inside of the steamed crab will be green.

Another possibility is that the environment in which crabs are raised is dirty, messy, and poor. When the crab is raised, if the water environment in it is not good, it will also affect the quality of the crab, because if the water is polluted by metal, it may turn the crab's roe green.

If there is something green in the steamed crab, it is not recommended to use normal crabs, which are yellow or white in the body. If it turns green, it already means that he is an abnormal crab, and in order to prevent it from having a bad effect on the body after use, it is said that it should never be eaten again.

And there are many things to pay attention to when eating crabs, crabs belong to cold food, so when eating, you should eat them with vinegar or ginger, which can alleviate the problem of cold crabs and reduce the cold nature of crabs!

There are also crab gills, crab hearts, etc., they are inedible, and when eating crabs, these things must be removed. Because crab is a cold food, it should not be combined with other cold foods, and eating it at the same time can easily make our spleen and stomach cold. This can lead to adverse physical reactions such as stomach pain.

It may be the internal organs of the crab, which then cause the color to become darker, or it may be because the breeding environment is different, causing harmful substances to enter the liver and change color.

The green color found inside cooked crabs may be due to parasites contaminating the mucous membranes inside the crabs. It is also possible that the crab lives in a very harsh environment, so the crab roe turns green.

The green thing inside the crab is likely to be the liver of the crab or the contaminated mucosa, the liver is the detoxification organ of the crab, and the toxic and harmful substances that enter the crab's body will enter the liver, and the toxic and harmful substances with color will cause the liver to change color, and the green thing in the crab is not recommended.