Oolong tea is neither black tea nor green tea. Oolong tea leaves are semi-oxidized teas, they are sometimes called "semi-fermented teas".
The differences between oolong tea, black tea and green tea are as follows:
1. Characteristic distinction
Oolong tea
Oolong tea is a semi-fermented tea and is a mature tea. The cords are curly and fat, and the color is sandy green; after brewing, the soup is golden and rich in color, with a rich orchid aroma, a mellow and sweet taste, a unique "rhyme", and is very resistant to soaking, and there is still a lingering fragrance after seven brews.
Black tea
Black tea is a fully fermented tea with the characteristics of black tea, red soup, red leaves and mellow sweetness. This tea has a thin and tight shape with sharp edges, a jet black and oily color, a bright red soup, a rich and long-lasting aroma, and a mellow and sweet taste.
Green tea
Green tea is tea made without fermentation. Its quality characteristic is clear soup and green leaves. The finished tea has slender strips, abundant pekoe, and emerald green color; the tea soup is green and clear, has a rich aroma, and has a fresh, mellow, and refreshing taste.
2. Differentiation of production areas
Oolong tea
Oolong tea is mainly produced in the three provinces of northern and southern Fujian, Guangdong and Taiwan, and in Sichuan, Hunan and other provinces. There is also a small amount of production, with Anxi County in Fujian Province as the main production area.
Black tea
There are many varieties of black tea and a wide range of production areas. The main production area is in China. In addition, it is also produced in India, East Africa, Indonesia, Sri Lanka, Indonesia, and Kenya. .
Green Tea
China produces green tea in a very wide range, including Henan, Guizhou, Jiangxi, Anhui, Zhejiang, Jiangsu, Sichuan, Shaanxi (southern Shaanxi), Hunan, Hubei, Guangxi, Fujian and other places are the main green tea producing provinces in my country.
3. Differentiation of production processes
Oolong tea
Oolong tea has picking standards and leaf tips that are more mature than red and green tea. The main production processes include picking, withering, and shaking. Green, fried green, kneading and baking, etc.
Black tea
Black tea is made from suitable new leaves of the tea tree as raw materials, and is refined through a series of traditional production processes such as withering, rolling, fermentation and drying. Withering is the first step of black tea. important craftsmanship.
Green tea
Green tea is made from suitable new shoots of tea trees. The picked fresh leaves are first cured at high temperature to kill various oxidases and keep the green color of the tea leaves. Made by rolling, drying and other manufacturing processes.
4. Differentiation of functions
Oolong tea
Oolong tea is known as beauty tea and bodybuilding tea in Japan. Its outstanding effects are in breaking down fat, losing weight and building bodybuilding. Regular drinking of oolong tea has health benefits such as beauty, detoxification, diuresis, lipid-lowering, anti-aging, and anti-cancer.
Black tea
During the fermentation process, black tea will produce a large amount of theaflavins, thearubigins and other ingredients, which help gastrointestinal digestion, promote appetite, and have heat-clearing, diuretic and refreshing properties. , sterilization, detoxification, stomach nourishing and other health effects.
Green tea
Green tea has not been fermented and retains the natural substances of the fresh leaves. It is rich in natural nutrients and has special health effects such as anti-aging, sterilization, and anti-inflammatory.
Baidu Encyclopedia - Oolong Tea
Baidu Encyclopedia - Black Tea
Baidu Encyclopedia - Green Tea