Eating dumplings on the first day of the Chinese New Year is a traditional custom, because on the first day of the Chinese New Year, people's appetite is not good, and they can't eat, and dumplings are the traditional Chinese food for appetizing and relieving cravings.
In the past, when the first day of the month coincided with the wheat harvest in less than a month, families had food, so they took advantage of this time to enjoy the blessings, and there is a "better than dumplings," so dumplings naturally became the first choice.
Eating dumplings on the first day of the month, drinking hot soup, and working up a sweat will dispel the summer's "poisonous fire" and make up for the physical exertion of the hot weather.