This is the main reason. Drinking tea is not like drinking, it is not limited to three meals, and it can be done at any time. When drinking tea, two people, three people and five people can do it, and the number is not limited. Besides, it's a good atmosphere to talk business in the teahouse. When drinking to talk about business, the amount of alcohol is too high, some nonsense, some irrelevant, some ugly, and some don't count. The second is the need for medical care. Everyone knows that drinking is harmful to health, so some businessmen transfer their business from hotels to tea rooms. There are many benefits of drinking tea, so I won't elaborate here. The third is the need to show taste. Drinking tea is also a tasteful behavior. Especially when there is a tea ceremony, the cultural atmosphere is very elegant.