This is a folk custom:

Eating autumn is also called biting autumn, grabbing autumn fat, etc. It depends on the place. The main meaning is to eat something to supplement it on this day in beginning of autumn. Here are some specific introductions and some introductions of other seasons:

There is a saying among the people that "posting autumn fat". It is popular in beginning of autumn to weigh people by hanging scales, and compare their weight with that of long summer to test their fatness. Weight loss is called "bitter summer". At that time, people often judged health only by being fat and thin. Of course, if you lose weight, you need to "make up". The way to make up for it is to "paste the autumn fat" and eat delicious food. Of course, eating meat is the first choice. On this day, ordinary people eat stewed meat, while those who pay attention to it eat boiled meat and braised pork, as well as jiaozi, stewed chicken, stewed duck and braised fish.

In addition to "putting on autumn fat" in beginning of autumn, "biting autumn" is also popular in Tianjin and other places. People believe that eating melons in beginning of autumn can avoid diarrhea in winter and next spring. There is such a record in Zhang Dao's "Tianjin Miscellanies Customs at the Age of Years" in the Qing Dynasty: "Eating melons and biting autumn in beginning of autumn can avoid diarrhea." In the Qing Dynasty, people put melons, steamed preserved eggplant and fragrant glutinous soup in the yard the day before in beginning of autumn, and ate them in the beginning of autumn, in order to clear away the summer heat and avoid dysentery.

Autumn peaches are popular in Hangzhou. In beginning of autumn, adults and children should eat autumn peaches, one for each person, and keep the stones after eating. On New Year's Eve, the peach stones are thrown into the stove and burned to ashes. People think that this will save the plague for one year.

It is also popular in eastern and western Sichuan to drink "autumn water", that is, at the exact moment in beginning of autumn, the whole family drinks a cup each, which is said to eliminate summer heat accumulation, and Qiu Lai will not have a stomachache.

Spring Festival: wear new clothes and hats, put up Spring Festival couplets, set off firecrackers, have a family reunion dinner with jiaozi, and visit relatives to celebrate the New Year.

Lantern Festival: Fireworks are set off with lanterns, and solve riddles on the lanterns eats Lantern Festival. There is a folk saying that "the fifteenth day of the first month will lead to all kinds of diseases", which means that on the night of Lantern Festival, you should go out for a walk and cross more bridges, so that you can get rid of your illness.

Tomb-Sweeping Day: Go for a walk in the grave and eat cold food such as green balls.

Dragon Boat Festival: eating zongzi in dragon boat races, hanging mugwort leaves and hanging purses, and drinking realgar wine is a five-color line.

Mid-Autumn Festival: Enjoy the bright moon and eat moon cakes.

Double Ninth Festival: climb high and look far, drink chrysanthemum wine, eat double ninth cake, insert dogwood, and return the married daughter to her parents' home to honor the old and celebrate her birthday.

Chinese Valentine's Day (the seventh day of the seventh lunar month): begging for cleverness and offering melons and fruits; Begging for wisdom, drying books and clothes.

Mid-Autumn Festival (the 15th day of the seventh lunar month): It is also called "Bonin Festival", and in some places it is called "Ghost Festival". A big fast feast to support monks; Turn over the dead, burn incense and put out river lights.

beginning of spring: Eating radish is called "eating spring".

February 2nd: It's the day when dragons look up and eat pig's head.

beginning of autumn: Grab the autumn fat.

laba: laba porridge.

eat noodles on the 7th, 17th and 27th day of the first month.