Supplement:

Matcha was invented by Han people, and it was ground into superfine powder, covered and steamed green tea by natural stone mill. Cover and shade the green tea before picking 10-30 days, and the processing method of matcha is grinding. Matcha is more used in processing industry, and the traditional processing mode of stone mill, due to the limited output of production equipment-stone mill, can not meet the supply of matcha, and modern production technologies such as jet mill and ball mill, ball mill and jet mill have greatly improved the production speed and reduced the cost, making matcha, an ancient luxury, go to the general public.

The raw material of Matcha is a kind of small camellia oleifera abel. that has not been twisted. There are two key words in its production: covering and steaming. 20 days before picking spring tea, scaffolding must be set up to cover reed curtains and straw curtains, and the shading rate can reach more than 98%. There are also simple covers, and the shading rate can only reach 70 ~ 85% if covered with black plastic gauze. Experiments show that shading tea with different materials and colors has different effects. ?