There must be one in the big supermarket. As the weather turns cold, water chestnuts with fire-purging effect are listed one after another. In an interview yesterday, the reporter found that although the prices of fresh real estate products such as water chestnut and water chestnut are slightly higher than ordinary vegetables, they have attracted many health-conscious consumers, and many farmers' markets have piles of water chestnut for sale. A farmer's market in the downtown area saw that the retail price of peeled water chestnut was 4 yuan per catty, and the peeled water chestnut was 6-7 yuan per catty. There is a snack street in Heishijiao, Dalian that sells vegetables.