What is the solar term custom of heavy snow?

In many places in northern China, there is a custom of eating caramel on snowy days. At this time, there will be many street vendors knocking gongs to sell caramel. As soon as the gong rang, many children, women and old people came out to buy it. Women and old people eat caramel in winter to nourish their bodies.

During the heavy snow, many people all over the country have snowball fights and enjoy the snow scene in the ice and snow. There is a passage in Volume III of Zhou Mi's "Old Wulin Stories" in the Southern Song Dynasty that describes the situation of princes and nobles making snowmen on snowy days in Hangzhou: "Enjoy the snow in the forbidden area and in the backyard, decorated with golden bells, made snowflakes, snow lanterns, snow-capped mountains and other things, and filled with golden pots for enjoyment."

When it snows heavily, the days are long and the nights are short. According to this feature, people use their spare time at night to work at night, commonly known as "night shift". For example, hand-made paper binding, embroidery, weaving, sewing, dyeing, and eating at night, which is the source of "midnight snack". In order to meet this demand, restaurants and food stalls have also opened night markets, and their business is very prosperous until the fifth watch.