Green tea is an unfermented tea. The quality characteristics of green tea: "three greens", dry tea green, tea soup green, and leaf bottom green. The inner quality requires a high aroma and a fresh and mellow taste. Common famous green teas on the market include West Lake Longjing, Huangshan Maofeng, Dongting Biluochun, Lu'an Guapian, Xinyang Maojian, Taiping Houkui, Lushan Yunwu, Sichuan Mengding, etc.

White tea is a slightly fermented tea. The quality characteristics of white tea: represented by white peony, it looks like a peony flower with buds and leaves connected to the branch, two leaves hugging the heart, green leaves sandwiching silver buds, so it is called white peony. The aroma of the inner substance is fresh and fragrant, the taste is fresh and mellow, and the soup is apricot yellow. The most valuable white tea is Silver Needle Pekoe, which is characterized by its white hairs, needle-like shape, apricot-yellow soup and sweet taste. White tea is mainly produced in Fuding, Zhenghe, Songxi and Jianyang in Fujian Province.

The unique floral fragrance is directly melted into the leaves without being roasted. The fresh and fragrant fragrance is open and generous, and the aftertaste lasts for a long time after drinking.

Green tea, also called oolong tea, is a semi-fermented tea. High-end oolong tea has a special charm, such as Wuyi rock tea with "rock charm", Tieguanyin with "guanyin charm", Taiwan frozen top oolong with "charm" and other quality styles.

Black tea is a fully fermented tea. Black tea can be divided into two categories: strip black tea and black broken tea. The famous Souchong black tea is Lapsang Souchong. Its quality characteristics are that the leaves are dark in appearance, with straight and thick cords; the inner substance has a high aroma, with a slight pine smoke aroma, the soup is orange-yellow, and the taste is thick and refreshing, like Guiyuan soup. The quality characteristics of Tiao black tea are: the appearance of the strips is tender, tight, straight and even, the color is dark and moist, the aroma is fragrant, the taste is mellow and sweet, the soup color is red and bright at the bottom of the leaves. The quality of black broken tea requires bright red color and strong, strong and fresh taste.

Black tea is a kind of post-fermented tea. Dark tea is divided into two categories: loose tea and steamed tea. The quality characteristics are that the soup is red, thick and bright (brown or brown), the taste is smooth and mellow, and the aroma is unique.