Sanitary facilities. The production process of duck wings soaked in Longyan is very clean, and the materials are properly marked, which is very safe. At the beginning of 2008, this kind of food-soaking feet duck feet appeared. Because of its unique taste, it became popular in a short time. By the beginning of 20 12, this kind of food was basically sold in all shops in Fujian, and was basically designated as a specialty of Fujian.