Supplement:
Matcha was invented by Han people. It was ground into superfine powder by natural stone mill and covered with steamed green tea. Green tea 10- cover and shade 30 days before picking, and the processing method of matcha is grinding. Matcha is more used in the processing industry, but the traditional stone mill processing mode can't meet the supply of matcha because of the limited output of production equipment-stone mill, while modern production technologies such as air mill and ball mill, ball mill and air mill greatly improve the production speed and reduce the cost, which makes matcha, an ancient luxury, go to the general public.
The raw material of matcha is a small camellia oleifera. Not distorted. There are two key words in its production: cover and steaming. 20 days before picking spring tea, scaffolding must be set up to cover reed curtains and grass curtains, and the shading rate can reach over 98%. There is also a simple cover, covered with black plastic gauze, and the shading rate can only reach 70 ~ 85%. Experiments show that different materials and colors of shading tea have different effects. ?