The south has a warm climate and rich products. Jiaozi is full of three delicacies, shrimp, crab roe, sea cucumber, fish and so on. Jiaozi's wrapping method is also different. The south "pinches" the north "squeezes" delicate and exquisite packages from the south. After putting the meat stuffing into the dumpling skin, it is necessary to seal both sides of jiaozi by pinching.

The winter solstice is a very important solar term in China. It is one of the traditional festivals of the Han nationality. It originated in the Han Dynasty, flourished in the Tang and Song Dynasties, and went through various dynasties. The winter solstice is commonly known as "winter festival", "long festival" and "sub-year" As early as more than 2,500 years ago in the Spring and Autumn Period, China had observed the sun with the earth and determined the winter solstice, which was the earliest of the 24 solar terms, and the time was fixed every year.

The legend of eating jiaozi on the winter solstice.

The winter solstice is a cold winter. People use food to keep warm and cure diseases. After thousands of years of development, they gradually formed a unique seasonal food tradition, such as wonton, jiaozi, glutinous rice balls, red bean porridge, dog meat and mutton. Along with the winter solstice diet custom, there are many Han folk stories.

People in Henan have the custom of eating jiaozi on the winter solstice, which is called "pinching frozen ears". There is also a legend: it is said that Zhang Zhongjing, a doctor in Nanyang, was originally a medical officer, and it was a snowy winter when he retired in his later years. He saw that the villagers in Nanyang were hungry and cold, and many people's ears were frozen.

So he asked his disciples to set up a clinic in Nanyang Guandong. They cooked mutton, peppers and some herbs for removing cold in a pot, and took them out and chopped them up. Then they put them down and cooked them in a pot, and made soup for the villagers to eat. After the villagers took it, their frozen ears were cured. Later, when it came to the winter solstice, people imitated this "frozen ear" and said it was the winter solstice.