I don't know if you have encountered in life, suddenly want to drink some tea, but in the goods table into the confusion, or open the supermarket freezer, in the end to iced black tea or green tea? The two do not seem to be much difference, in fact, the inner difference is big!

First of all, green tea is unfermented tea, and black tea is fully fermented tea, generally speaking, green tea out of the glass is bright green, black tea out of the red.

Green tea is made without any fermentation process, with suitable tea tree tips as raw materials, directly after picking by killing, kneading, drying and other typical processes made of tea. Its dry tea color and brewed tea broth, leaf bottom to the green color, so the name.

Black tea is not killed in the production process, but directly withering, kneading and cutting, and then complete fermentation, so that the tea polyphenols contained in the tea leaves oxidized to become the thearubigin, and thus the formation of black tea is unique to the dark red tea, red tea broth, and the degree of fermentation up to 80_90%.

General brewing green tea, especially the buds and leaves of the tender green tea, will use about 80 boiling water. The water temperature is too high, easy to destroy the tea vitamin C, caffeine is easy to precipitate, resulting in yellow tea, taste bitter. While the black tea to use 90-100 boiling water, water temperature is low, the active ingredients in the tea leaves precipitation less, tea flavor light.

Green tea retains more of the natural substances of fresh leaves. Among them, the tea polyphenols, caffeine retained more than 85% of the fresh leaves, chlorophyll retained about 50%, the loss of vitamins is also less, which formed the green tea "clear soup, green leaves, taste astringent" characteristics. Green tea retains the natural substances in the composition of anti-aging, anti-cancer, anti-cancer, sterilization, anti-inflammatory and other effects. Green tea within the tea polyphenols, caffeine, amino acids and other content, there is a stimulation of the oral mucosa, to promote the role of the secretion of the digestive glands, is conducive to the production of fluids, summer summer thirst-quenching effect is good.

Black tea is sweet and warm, rich in protein, has the effect of refreshing and relieving fatigue. Black tea red leaves and red soup, giving a person a warm feeling; black tea can be added milk or sugar, there is heat to warm the stomach; black tea has to help digestion and grease, winter tonic fat favorable.

It is known that after the natural fermentation of tea, the tea tannin and other components are then converted into "tea red essence" and "dihydrochalcone" and other chemicals, dihydrochalcone is a natural sweet substance, so the black tea is sweeter, and the non-fermented tea Contained in the unfermented tea "tea tannin", and "tea tannin" is a tea-specific tannins, tannins are astringent, so the green tea is bitter and astringent.

The two kinds of tea for the human body are very much, but from a pharmacological point of view, green tea than black tea health effects are better than green tea, black tea than green tea has a stronger anti-cancer effect, and black tea is not cold, and therefore the stomach, for the sick people can not drink green tea, but you can drink black tea, in addition, I have heard that the green tea can be anti-radiation, often working in front of the computer is appropriate to drink more green tea.