Introduction of quick-frozen jiaozi

Quick-frozen jiaozi is a kind of food that can be eaten at any time after the wrapped jiaozi is quickly frozen. Jiaozi is a traditional special food loved by the Han people in China, and it is a must-eat food during the Spring Festival every year. According to legend, it was first invented by Zhang Zhongjing, a doctor in Nanyang, China during the Eastern Han Dynasty. Many provinces and cities in China also have the habit of eating jiaozi on the solstice in winter.