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How many kinds of tea are there in China?
Generally speaking, there are six kinds of tea:

1, oolong tea: Tieguanyin, Huang Jingui, Wuyi Rock Tea (including Dahongpao, Shuijinggui, Bletilla striata, Tieren, wuyi cinnamon, Wuyi Narcissus), Zhangping Narcissus, Zhangzhou Huangya Lan Qi, Yongchun Fingered Citron, Taiwan Province Frozen Oolong Tea, Guangdong Phoenix Narcissus, Phoenix Danshan, etc.

2. Black tea: Zhengshan, Jin Junmei, Yin Junmei, Tan Yang Kung Fu, Qimen Kung Fu, Ninghong, etc. ?

3. Green tea: Longjing, Birouchun, Huangshan Mao Feng, Nanjing Yuhua Tea, Xinyang Maojian Tea, Lushan Yunwu Tea, etc.

4. White tea: Junshan Silver Needle, Bai Hao Silver Needle, Bai Mudan, Gongmei and Shoumei.

5. Black tea: Pu 'er tea, Fuzhuan tea and Liubao tea.

6, yellow tea: Huoshan yellow bud, Mengshan yellow bud and so on.

Longjing:

West Lake Longjing is referred to as Longjing for short. Produced in the mountainous area around Longjing Village, southwest of West Lake, Hangzhou City, Zhejiang Province. Pick fresh leaves four times a year in spring. It belongs to green tea.

Tieguanyin:

Oolong tea, also known as green tea, is a semi-fermented tea between red and green tea. Oolong tea is the most complicated and time-consuming process in the six categories of tea, and the brewing method is also the most exquisite, so drinking oolong tea is also called drinking congou tea.

Pu 'er tea:

Belonging to black tea, it is produced in Pu 'er, Xishuangbanna, Simao and other places in Yunnan with a long production history. In the Tang Dynasty, there was a trade of Pu 'er tea in Kangzang area. Pu 'er tea is made from fresh leaves of Yunnan big-leaf tea tree, and there are special techniques of splashing water and stacking fermentation in the processing, which makes the finished tea have a unique old fragrance.

The difference between black tea and green tea:

Different shapes:

Green tea is fresh and tender, budding, with bright soup color, high aroma, mellow taste and green tea color. Black tea bud dew, moist color, bright red soup, bright red leaves, rich and lasting aroma.

2. Different colors of tea soup:

A few minutes before brewing, black tea is light brown; The soup of green tea is clear green. After brewing for more than half an hour, black tea is brown, good green tea is still green, green tea is bright, green or dark green, and black tea is light brown or dark brown.

3. The water temperature of tea is different:

High-grade green tea, especially famous green tea with tender buds and leaves, is generally brewed with about 80% boiling water. Too high water temperature is easy to destroy vitamin C in tea, and caffeine is easy to precipitate, which leads to yellow tea soup and bitter taste. When brewing black tea, it should be brewed with 90- 100 boiling water. If the water temperature is low, the active ingredients in tea will precipitate less, and the taste of tea will also fade. ?

4. The production process is different:

The fermentation degree of black tea is 80 ~ 90%. The production process is not enzyme fixation, but direct withering, kneading, cutting, and then thorough fermentation, so that the tea polyphenols contained in tea are oxidized into thearubigins, thus forming black tea and black tea soup unique to black tea.

On the other hand, green tea is a kind of non-fermented tea, which is made from the new leaves of tea tree, without fermentation, through typical processes such as enzyme fixation, kneading and drying. After fermentation, the chemical reaction of tea polyphenols in black tea was reduced by more than 90%, and new components such as theaflavins and thearubigins were produced.

5. Different effects:

Once fermented, tea becomes "black tea", which is characterized by red and bright soup color, sweet and moist taste, rich in protein, and has the functions of refreshing and relieving fatigue.

The chemical composition of green tea is very different from that of black tea. Tea polyphenols, the main substance in green tea, will be converted into theaflavins after high temperature fermentation. "Theflavins" is a powerful lipid-lowering substance, which can prevent the formation of lipid deposits in blood vessels, thus preventing coronary heart disease or stroke, so drinking black tea regularly is good for preventing cardiovascular diseases.