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Tea leaves are green. Why are there black tea and green tea

Tea tree is a kind of perennial evergreen woody plant. China is the first country to plant, make and drink tea in the world. Tea cultivation has a history of thousands of years Some people may have to ask, since all tea is green, why should we divide black tea and green tea? In fact, black tea and green tea are made from new leaves of tea tree, but the processing methods are different The earliest black tea in the world was invented by tea growers in Wuyishan tea district…

Tea tree is a kind of perennial evergreen woody plant. China is the first country to plant, make and drink tea in the world. Tea cultivation has a history of thousands of years Some people may have to ask, since all tea is green, why should we divide black tea and green tea? In fact, black tea and green tea are made from new leaves of tea tree, but the processing methods are different

The earliest black tea in the world was invented by tea growers in Wuyishan tea district of Fujian Province, China.

black tea is a kind of fully fermented tea. It is refined by withering, rolling (cutting), fermentation, drying and a series of technological processes. The withering of

is an important process for the primary preparation of black tea, and black tea is called “black tea” in the initial preparation During fermentation, polyphenols in tea are oxidized under the promotion of enzyme, which makes the green tea body turn red. After the fermentation of

tea, the tea polyphenols are reduced by more than 90%, and new components such as theaflavins and thearubins are produced.

is named after the red color of tea soup and leaf base after brewing

For green tea, it is also called non fermented tea.

does not undergo fermentation. It is simply divided into three steps, namely, killing green, rolling and drying.

people heat the iron pot to nearly 220 ℃, so that the bottom of the pot turns dark red, and then pour in the new leaves of the tea plant and stir fry them at a very fast speed In this process, the water in the tea is evaporated, and more natural substances of fresh leaves are retained. Among them, more than 85% of tea polyphenols and caffeine are retained, about 50% of chlorophyll is retained, and the loss of vitamins is less. The color of the finished products, after brewing, the tea soup retains more of the green main tone of the fresh tea, thus forming the green tea with “clear soup, green leaves, strong taste convergence” In addition, flower tea is also a kind of green tea

In life, some people like to drink black tea, and some people like green tea. People who like black tea say: “black tea is not as astringent as green tea.

” tea is astringent because it contains tannic acid. After fermentation, the tannin of

black tea solidifies and does not dissolve in water, so it is not as astringent as green tea and more palatable People who like green tea say: “green tea is more fragrant than black tea.

” tea fragrance is due to the aromatic oil.

aromatic oil is very fragrant and easy to volatilize. Black tea after fermentation, after a long time of baking, most of the aromatic oil volatilizes, so it is not as fragrant as green tea

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