During the Qingming Festival, there is a custom of what to eat in the south of the Yangtze River, while there is prickly heat in the north.

Tomb-Sweeping Day and Jiangnan have the custom of eating green dumplings, while Tomb-Sweeping Day has the custom of eating prickly heat in the north and south.

Tomb-Sweeping Day has the custom of eating prickly heat in both north and south of China. "Zanzi" is a kind of fried food, crisp and delicate, and was called "cold ware" in ancient times. The custom of forbidding fire and cold in the Cold Food Festival is not popular in most parts of China, but the prickly heat related to this festival is deeply loved by the world.

The prickly heat that is popular in Han areas is different from the north and the south: the prickly heat in the north is generous and free, with wheat flour as the main material; The southern prickly heat is exquisitely made, mainly rice and flour.

Extended data:

During the Spring and Autumn Period and the Warring States Period, the "cooler" eaten at the Cold Food Festival was called prickly heat. At that time, in order to commemorate the famous minister of Jin in the Spring and Autumn Period, the Cold Food Festival (one or two days before Tomb-Sweeping Day) was banned for three days, so people fried some ring-shaped pasta in advance as fast food for the Cold Food Festival, which was called the "Cold Food Festival".

After the founding of New China, the Cold Food Festival gradually merged with Tomb-Sweeping Day in one day. The custom of forbidding fire and cold food in the Cold Food Festival has long been lost, but the prickly heat related to this festival is deeply loved by the world and is still a seasonal food for all ages.