Eating jiaozi in one fell swoop because jiaozi is shaped like an ingot, and "Fu" is homophonic with "Fu", so eating jiaozi in one fell swoop has the meaning of "Yuan Treasure Fu".

Eating noodles on the second day, the Southern Dynasties' Chronicle of the Age of Jingchu recorded that "the soup cake was eclipsed in June, and it was called evil". The soup cake here refers to noodles. Moreover, there are many ways to make noodles. We often eat noodles in soup, such as tomato and egg noodles, braised beef noodles, etc., which can be eaten with soup.

Entering the last stage, the tough dog days came to an end, the weather began to turn cold, and simple and convenient egg cakes became popular food. The method of laying eggs on a cake is simple. Spread the batter into a cake in a cake pan, and when it is heated evenly and quickly formed, quickly pour the laid eggs on the cake.

Food customs in dog days:

Zhang Shoujie, a Tang Dynasty man, said, "On the third day of June, the Duke of Qin started to do it, so when the clouds first lurk, those who lurk hide to avoid the summer heat." Like other festivals in ancient dog days, many food customs were passed down among the people.

There is a saying among the people in old Beijing: "jiaozi lies on his head, and pancakes spread eggs on his feet." It's about the food folk custom that every family abides by in the old Beijing for several days. Why is there such a food custom and saying? It is said that it was related to the solar terms and the production skills of vegetable farmers at that time: agriculture was backward, there were no greenhouse facilities, and there were no more summer vegetables for the people.

When the summer solstice falls several volts, it is the time when vegetables are green and yellow, and because it is extremely hot in the rainy days in old Beijing, people sweating like a pig are willing to get some simple and light meals at this time, so the custom of eating jiaozi, noodles and pancakes in the rainy days is derived.