What do you mean by three volts?

Three volts, the initial, middle and final three volts, is the hottest period of the year. "Fu" means that Yin is forced to hide underground by Yang.

The dog days appear in the Gregorian calendar from mid-July to mid-August every year, and its climatic characteristics are high temperature, low pressure, high humidity and low wind speed. The so-called "heat is in three volts" can be divided into initial, middle and final three volts, and its date is determined by the date of the solar terms. ?

According to the traditional calculation method in China, the third watch from summer to the future is the beginning of the first fall, the fourth watch is the beginning of the middle fall, and the first watch after beginning of autumn is the beginning of the final fall. Because every Geng day is 10 days apart, the stipulated time of the first day and the last day is 10 days.

Food culture:

As the saying goes, "cold has three or nine, and heat has three volts." On the dog days, on the one hand, the ancients used cool drinks to escape the heat, on the other hand, they also held corresponding custom activities, such as "drinking to ward off evil spirits". Over time, a unique diet custom culture has been formed.

China is a vast country with different customs in different dynasties and regions. For example, the summer diet in the Northern Song Dynasty is "green purse" and "green lotus" is lotus leaf, which has the effect of clearing heat.

Old people have the custom of eating chicken porridge, which is called "tonifying Yang". In a word, the origin of the custom of "Three Dog Foods" in China is related to the "Raf Festival" written in the Han Dynasty, which was originally an activity to celebrate agriculture. This also reflects the richness of China's diet custom culture from one side.