Old Shanghai custom: eat hairy crabs when the northwest wind blows. In recent years, due to global warming, the cold wave in Jiangnan has been postponed to around New Year's Day. At this time, the hairy crabs have entered the late stage and the output has decreased; not only the quality is low, but also the price is high.

In the past, hairy crabs were mainly produced in Yangcheng Lake, Suzhou. "The northwest wind blows and the crabs' legs are itchy", which was based on the local meteorological and phenological experience at that time. Nowadays, scientific breeding technology has greatly improved. Judging from the awards in the "National River Crab Competition", the best producing areas have turned to the lake areas in the middle reaches of the Yangtze River and the lower reaches of the Huaihe River. The market time of high-quality hairy crabs has also been advanced accordingly.

In fact, the industrial model in southern Jiangsu has caused great damage to the environment. In the past two years, Taihu Lake has also been polluted, and the production of hairy crabs has been significantly reduced.

There is another reason why you eat hairy crabs when the northwest wind blows: after the crabs are exposed to the cold, the meat tightens, and the taste is delicate and more elastic. Now, all our hairy crabs are stored in cold storage, and the effect is exactly the same.

So, hairy crabs are the most delicious from October to November every year.