Zhang Zhongjing summed up the clinical practice of the Han Dynasty for more than 300 years, so he set up a medical shed in the local area and set up a cauldron. He made mutton, pepper and herbs for dispelling cold and warming up into ears with flour bags, cooked them and gave them to the poor together with soup and food.
People eat from the solstice of winter to New Year's Eve, fighting typhoid fever and curing frozen ears. Since then, villagers and future generations have imitated it, calling it "jiaozi Ear" or "jiaozi", and some places called it "flat food" or "instant noodle jiaozi".
Dumpling Banquet: jiaozi has been used for banquets since 1000 years ago in the Tang Dynasty. Chang 'an, the capital at that time, was the economic and cultural center of the Tang Dynasty. In times of peace and prosperity, people's requirements for life are getting higher and higher, and food culture has also developed. In the Tang Dynasty, there was a high-class banquet in Chang 'an, called "Shao Weiyan", which was a sumptuous banquet dedicated to the emperor after the official position of the court minister was promoted.
A menu preserved from the Tang Dynasty to today's "barbecue banquet" is equivalent to today's menu. In this menu, there is a dish called "Twenty-four Gas Wonton". Jiaozi is packaged into different shapes and contents according to the 24 solar terms. Therefore, we believe that today's dumpling feast may have taken shape in the Tang Dynasty.