People in China have been drinking hot water for thousands of years, at least before tea appeared, because early tea was boiled, and it didn't start to soak until after the Song Dynasty!

Drinking boiled water was originally the lifestyle of dignitaries. Because of the fuel problem, ordinary people only boil water when they are sick or for special reasons! In the Song Dynasty, a large number of teahouses began to boil water instead!

After 1949, the government began to build boiler rooms on a large scale and so on! Previously, in 1894 and 1932, the government at that time also advocated popularizing drinking hot water, but it failed to achieve popularization for various reasons!