How long does it take to steam crabs? How long does it take to steam crabs?

Crab is a very delicious food. It contains a large amount of vitamins and proteins, as well as many trace elements, such as calcium and phosphorus. Therefore, eating crabs can supplement many substances in the human body. Moreover, there are many ways to cook crabs. They can be steamed, stewed, or cooked with other ingredients. So, how long does it take to steam crabs?

Nutritional Value

As a delicious delicacy, crab has been favored by people since ancient times. Li Shizhen of the Ming Dynasty praised crabs, saying: "Fresh crabs are mixed with ginger and vinegar, and accompanied by fine wine. Chew the crabs and hold the claws to enjoy the flavor." Li Yu of the Qing Dynasty said of crabs: "They are the pinnacle of color, fragrance, and taste. Nothing can surpass them." Therefore, crabs are known as "all other flavors bland on the table." Crabs are rich in nutrients and contain a variety of vitamins. Among them, vitamin A is higher than other terrestrial and aquatic animals, B2 is 5-6 times higher than meat, 6-10 times higher than fish, and 2-3 times higher than eggs. The content of B1 and phosphorus is 6-10 times higher than that of ordinary fish. Every 100 grams of edible part of crab contains 17.5 grams of protein, 2.8 grams of fat, 182 milligrams of phosphorus, 126 milligrams of calcium, and 2.8 milligrams of iron. In addition to being rich in calcium, crab shells also contain astaxanthin, astaxanthin, etc.

Steamed Crab

Crabs are not only delicious food, but also have great medicinal value. "Bencao Shiyi" said: "Its function is not only to disperse blood, but also to harmonize blood." Traditional Chinese medicine believes that crabs are cold and salty in nature. Crab meat has the functions of clearing heat, dispersing blood clots, healing injuries, regulating meridians and nourishing yin; its shell can clear away heat, detoxify, break up blood stasis and relieve pain.

Modern research has found that crab shells contain a substance called chitin. A substance called ACOS-6 can be extracted from chitin. It has low toxicity and immune-activating properties. Animal experiments have confirmed that this substance can inhibit the proliferation and metastasis of cancer cells.

In autumn, when chrysanthemums are fragrant and crabs are plump, it is the best time for people to taste crabs. Crabs are very nutritious. Their protein content is several times higher than that of pork and fish. They also contain high levels of calcium, phosphorus, iron and vitamin A. But if eaten improperly, it may cause harm to your health.

Dead crab hazards

When a crab is dying or dead, the histamine in its body breaks down into histamine. Histamine is a toxic substance. As time passes by after death, more and more histamine accumulates in the crab's body and the toxicity becomes stronger and stronger. Even if the crab is cooked, this toxin is not easily destroyed. If eaten by humans, it will cause poisoning. Common symptoms include nausea, vomiting, abdominal pain, and diarrhea. In severe cases, dehydration, convulsions, and even shock may occur. Therefore, never eat dead crabs.

Steamed Crab

It is safest to eat steamed crabs

If you eat crabs raw, pickled, or drunken, you may be infected with a chronic parasitic disease called paragonimiasis. When eating steamed or boiled crabs, you should pay attention to boiling them for at least 20 minutes after the water boils. Only when they are cooked thoroughly can the bacteria in the crab meat be killed. One thing is also very important. When eating, you must remove the four substances of crab gills, crab heart, crab stomach and crab intestines. These four things contain bacteria, viruses, sludge, etc.