1. According to the ancient Chinese timekeeping method, it is midnight to 1 am the next day.

。 "jiaozi

" is the moment when the new year and the old year intersect. Jiaozi means getting married at an older age, and eating jiaozi during the Spring Festival is considered as a great luck. In addition, jiaozi is shaped like an ingot, and wrapping jiaozi means wrapping good fortune, while eating jiaozi symbolizes prosperity.

2. Folklore, which is related to Zhang Zhongjing, a famous doctor in the Eastern Han Dynasty. It was said that one winter was particularly cold, and many poor people's ears were frozen rotten. Zhang Zhongjing was very uncomfortable when he saw it. From the winter solstice, he set up a cauldron and cooked a kind of "soup for removing cold and charming ears" to treat the poor. The practice of "Quhan Jiaoer Soup" is to boil mutton, pepper and some cold-dispelling herbs in a pot, then take them out and chop them up, wrap them into ear-shaped "Jiaoer" with flour bags, and cook them in the pot and give them to patients. "Jiao Er" is very useful. After people eat it, their blood is smooth and their frozen ears are cured. Zhang Zhongjing continued to apply pesticides until the New Year's Eve. On New Year's Eve, people appreciated Zhang Zhongjing's kindness in pesticide application, so they made food for New Year just like Jiao Er, and called it "jiaozi". Thus, jiaozi's eating was born.

jiaozi, as a folk food with a long history, has been deeply loved by the people since it came out. There is a saying among the people that "it's delicious but not as good as jiaozi".