The unique water quality of Yangcheng Lake has created the unique taste of Yangcheng Lake hairy crabs. Yangcheng Lake is the first lake where seawater meets fresh water. Its water area is 100 Li and its water depth is 1.5 to 2 meters. The subsoil is fertile, the bait is rich, the water quality is good and the transparency is high. Lake water contains trace elements such as calcium, magnesium and oxygen, which is the best place for hairy crabs to grow. In addition, the alkaline water quality of Yangcheng Lake is suitable for the growth of hairy crabs, so the meat quality of hairy crabs is delicate, tender and sweet. The alkaline lake water means that crabs living here don't need thick shells to resist corrosion, so their shells are thinner and more brittle than crabs in other areas, and they will break with a bite. In addition, the number of hairy crabs per mu in Yangcheng Lake is clearly stipulated, and only 1.500 hairy crabs can be released per mu of water surface, so the price of hairy crabs will be more expensive than other crabs.

Because of its superior living environment, beautiful water and abundant food, almost every crab in Yangcheng Lake has a big and fat body, a bright green shell, a clean abdomen, golden claws and yellow short and dense hair. Common species of hairy crabs have heavy soil content and heavy shell mud due to living environment. The crab belly that rubs the ground all the year round is also hidden in the mud. The hair is thick and muddy, and the claw color is not obvious golden yellow.

It is best not to eat crabs for more than four hours. Crabs are different from other foods. Once they leave the water, the bacteria that began to multiply are in the body and become food containing histidine. The histidine contained in crabs will be decomposed into histidine under the action of some vitamins overnight. Although high temperature can kill pathogenic microorganisms, it cannot destroy toxins and cause histidine poisoning. So it's best to steam crabs now, generally not more than 4 hours.

It's best to eat only one meal. Because crabs are rich in protein and high in cholesterol, eating too much is easy to get sick. Even healthy people, eating too much will lead to indigestion symptoms, such as abdominal pain, bloating, vomiting, diarrhea and so on. It should also be noted that eating crabs may aggravate the condition of people suffering from hepatitis, cardiovascular diseases, cholecystitis, colds and other diseases.