In December 2019, the UN General Assembly declared May 21 as International Tea Day. There is another "tea" date - December 15.
There are 7 main types of tea in China
Black tea 红茶🍵

Green tea 绿茶🍵
Yellow tea 黄茶🍵
Oolong tea 五龙茶🍵
Dark tea 黑茶🍵
White tea 白茶🍵
Buckwheat tea 🍵

Buckwheat tea is a superfood. Plantations are located in the southwestern and northern provinces of China and Taiwan.
It should not be taken only by people who have a high degree of blood clotting.
There is no need to throw away the chi packets after the first brew, as you can brew one packet three more times.
This type of tea is served in cheap cafes, roadside or rural restaurants in any quantity and with any food.