Longfeng jiaozi (a famous brand in China, a national inspection-free product, started in Taiwan Province Province, a famous brand in Shanghai), jiaozi is a traditional special food deeply loved by the Han people in China, and jiaozi is a semi-circular or semi-moon angular pasta with stuffing. According to legend, it was first invented by China medical sage Zhang Zhongjing. Jiaozi is also a holiday food in the north, and many places in northern China have the habit of eating jiaozi from winter to Sunday. Jiaozi is also a common food in southern China.