The origin and formation period of the six major tea types

1. Green Tea: Originated in China, it can be traced back to at least the Western Zhou period (1046 BC to 771 BC). Over time, green tea varieties have increased, as well as different production methods and cultural backgrounds. Green tea is a very important part of Chinese culture and traditional medicine.

2. Black Tea: originated in Fujian Province, China. The earliest black tea production method is said to have been invented by a Fujian official, dating back to the late Ming Dynasty (17th century). Black tea is rich in flavor and aroma, and goes well with milk and sugar.

3. Oolong Tea: Originated in China's Fujian Province, it can be traced back to the Ming Dynasty (1368-1644). Oolong tea carries the traditional culture of southern China and is known for its unique origin, production method and flavor.

4. Black Tea: originated in some ethnic areas of China's Yunnan Province and can be traced back to the Tang Dynasty period (618-907). Relatively little is known about black tea, but it is popular in areas such as Yunnan and Sichuan, especially during the cold season.

5. White Tea: Originated in Fujian Province, China, the history of white tea can be traced back to the Tang Dynasty (618 to 907). White tea has a light taste, light white color and contains less caffeine, which is very beneficial to health.

6. Yellow Tea: Originated in China's Anhui Province, the history of yellow tea can be traced back to the Tang Dynasty (618 to 907). Yellow tea is complex to make, sweet and moist, and difficult to preserve, making it more expensive and the most valuable of the tea types.