Duobei tea, which was a special and precious tribute to the capital during the Chongzhen years, was a good thing for the Emperor Shanggong. The origin of Doibei tea is in Duobei, the town of Puhua County, Puding County. Duobei is certainly not the current stockade of Duobei. It is a piece of land. The area produces coal. It has less sunshine and more fog. It is most suitable for the growth of tea. Although Lu Yu's "Tea Classic" does not record our Doibei tea, but there is Jiamu in the south, this tea should be one of them.

The history of Doibei tea is indeed very long. There are still many ancient tea trees in the Duobei area of ​​Huazhen Town. There is still a piece of tribute tea on the back of Zhangjiazhai Village. According to experts, there is already a history of nearly a thousand years. Such ancient tea trees are rare in Guizhou Province. At the time of the third cultural relics survey, Puding County had already entered its census, and also declared successful as a key cultural relics protection unit at the county and city level. This fully demonstrates that not only the production of Duobei tea is highly valued, but also the Excavation and publicity of Beicha culture. Duobei Tea is one of the famous historical and cultural teas in Guizhou Province. It is understood that an ancient tea tree growing on the Gongcha Mountain in Zhangjia Village, Huanjia Town has a history of thousands of years. It has been proved by experts that it is the oldest, largest and best protected ancient tea tree among the national tea leaf varieties. In 2007, after the Guizhou Provincial Party Committee and the Provincial Government issued the "Opinions on Accelerating the Development of the Tea Industry", Puding County built a famous brand of Duobeigong tea to set off a wave of tea industry development in the county. In order to better develop and protect Doibei tea, Puding County filed a national geographical indication protection product declaration for Doibei tea last year. After review by the Guizhou Provincial Bureau of Quality and Technical Supervision, the AQSIQ organized an expert review, and the historical origin, production process and quality requirements of Doibei tea were in compliance with the application requirements. After obtaining the geographical indication protection products, Duobei Tea plays an important role in making the Puding tea industry bigger and stronger and promoting local economic development. Duobei tea is produced in Puding County, Anshun City, Guizhou Province. Tested by the Provincial Geological and Mineral Center, the pH value of the soil in the territory is between 4.40 and 6.35. It is the first-grade soil for tea growth, and the key indicators such as altitude, sunshine time, rainfall, climate and humidity, all meet the planting standards of high-quality tea. Quality characteristics Duobei tea is planted in the high altitude of 1,300 meters above sea level in Huanzhen Town. Duobei tea park belongs to subtropical plateau humid climate, low latitude, high altitude, cool in winter and cool in summer, abundant rainfall, good natural ecology and nourishment of fertile soil. The sundial is bred, the rain and fog are moist, and the southwest Jiamu, the scent of the scent of the scent of the scent of the scent of the scent of the scent of the tea, is determined by the Tea Research Institute of Guizhou Province, and the tea is rich in tea polyphenols, amino acids, catechins and other substances. The soup is yellow-green and bright, with a strong aroma, can not afford tea stains, and often has excellent health care, anti-cancer, anti-aging, blood sugar lowering effects. "Duobei Royal Silver Needle" (flat tea), "Duobei Jinyuan Maofeng" (curved tea) is made of high-quality tea green, which is one of the representative products of Doibei tea. Excellent tea quality, has won the "Guizhou Puding (Chemical Division) Duobei Chungong Tea Culture Tourism Festival Fighting Tea Competition" gold medal, its producer is Duobei Jinyuan Tea Factory. Nutritional ingredients Polyphenols contained in tea, especially catechins, can inhibit bacteria, anti-inflammatory, anti-oxidation, prevent the formation of lipofuscin, and absorb the toxins such as melanin contained in the human body and then excrete them. The chlorogenic acid in the tea can also protect the skin and make the skin delicate, white and shiny. Tea polyphenols, lipopolysaccharides, vitamin C, carotene and the like can capture radioactive substances through comprehensive action, which can reduce the damage of radiation to the skin. Tea is rich in vitamin C, so drinking tea often makes the skin fair and shiny. Edible effect Flower tea: Dissipate the winter cold evil that accumulates in the human body and promote the yang hair growth in the body, which makes people feel refreshed. Green tea: thirst, digestion and phlegm, accelerated healing of oral and mild gastric ulcers. Green tea: emollient, throat, Shengjin, remove heat accumulated in the body, let the body adapt to the changes of the natural environment. Black tea: heat and abdomen, enhance the body's ability to resist cold, but also help digestion, to greasy. Tea in the British is: healthy liquid, soul drink. It is known as “national drink” in China. A large number of studies in modern science have confirmed that tea does contain biochemical ingredients closely related to human health. Tea not only has refreshing, clearing heat, relieving heat, eliminating phlegm, eliminating greasy weight loss, clearing heart and removing trouble, detoxifying and soothing, stimulating thirst, and reducing fire It has pharmacological effects such as phlegm, dehumidification and dehumidification, as well as certain diseases such as radiation diseases, cardiovascular and cerebrovascular diseases, cancer and other diseases. It can be seen that the pharmacological effects of tea and the wide range of functions are irreplaceable for other beverages. The main components of tea pharmacological action are tea polyphenols, caffeine, lipopolysaccharides and the like. Origin of the environment Duobei tea is one of the famous historical and cultural teas in Guizhou Province. It is understood that an ancient tea tree growing on the Gongcha Mountain in Zhangjia Village, Huanjia Town has a history of thousands of years. It has been proved by experts that it is the oldest, largest and best protected ancient tea tree among the national tea leaf varieties. Tested by the Provincial Geological and Mineral Center, the pH value of the soil in the territory is between 4.40 and 6.35. It is the first-grade soil for tea growth, and the key indicators such as altitude, sunshine time, rainfall, climate and humidity, all meet the planting standards of high-quality tea.

Technical requirements for quality of Duobei tea I. Variety Anshun bamboo leaf green (C.Sinensis cv.Anshun-zhuyecha) and medium and small leaf tea tree varieties suitable for making Duobei tea. 2. Site conditions The altitude of the area is 1200m to 1600m, the soil texture is yellow loam, the soil pH is 4.5 to 6.0, the soil thickness is ≥50cm, and the soil organic matter content is ≥1.0%. Third, cultivation management Seedling: Adopt cutting seedlings. 2. Planting density per hectare is ≤ 55,000 plants. 3. Fertilization: Apply more than 3,000 kg of organic fertilizer per hectare per year, and apply fertilizer according to the growth of tea trees. 4. Environmental and safety requirements: The use of pesticides, fertilizers, etc. must comply with relevant national regulations and must not pollute the environment. Fourth, picking 1. Picking time: Spring tea is from early March to late May, and autumn tea is from early September to mid-October. 2. 3. Picking criteria: spring tea picking single buds to one bud and two leaves; autumn tea picking single buds to one bud and two leaves. It is strictly forbidden to pick rainwater dew leaves, purple buds, pests and buds. Fifth, the processing technology Process: (1) Flat tea: fresh leaves → greening → greening → strips → foot dry. (2) Curly-shaped tea: fresh leaves → greening → greening → 揉捻 → foot dry. 2. (2) Killing: the temperature is about 200 ° C to 250 ° C, to 55% to 65% of water. (3) Rule: use the strip mechanism to 15% to 25% moisture. (4) 揉捻: Use manual or machine 揉捻, to the rate of ≥ 95%. (5) Foot dry: temperature 60 ° C to 80 ° C, 1 to 1.5 hours, drying to moisture ≤ 6%. Sixth, quality characteristics Sensory features: (1) Flat tea: the shape is flat, smooth and even; the color is green and lustrous; the tender and long-lasting; the soup is green and bright; the taste is mellow and fresh. (2) Curly-shaped tea: the shape of the strip is firm and even; the color is grayish green and smooth; the aroma is high and long; the soup color is yellow and green; the taste is mellow and fresh. 2. 3. Safety and other quality technical requirements: Product safety and other quality technical requirements must comply with relevant national regulations

Apply to：
Producers within the production area of ​​Duobei tea may apply to the Puding County Quality and Technical Supervision Bureau of Guizhou Province for the use of the “Special Mark for Geographical Indication Products”, which shall be reviewed by the Guizhou Provincial Bureau of Quality and Technical Supervision and submitted to the AQSIQ for approval. announcement.