Zhengan White Tea is a famous tea in Guizhou. It is known as “Green Tea Treasure” and “Moutai Quality”. It is a variety of green tea, and it is only about one month old for the whole year. The spring sprouts are jade white, the leaf is thin, the veins are light green, and the leaves gradually turn white to green when the temperature is ≥23 °C. Zhengan white tea can be divided into pine needle-shaped Zhengan white tea and flat Zhengan white tea according to the type of form, which can be divided into special grade, first grade and second grade according to the grade.

Zhengan white tea nutritional value Zhengan white tea has the effects of hangover and hangover, clearing away heat and moistening the lungs, calming the liver and benefiting blood, reducing inflammation and detoxification, reducing blood pressure and reducing fat, and eliminating fatigue, especially for excessive alcohol and tobacco, excessive oiliness and excessive liver fire. Digestive dysfunction and other diseases have unique two wonderful health effects. The appearance is high and fragrant, fresh and mellow, the soup is bright, the leaves are tender and even, and the color is tender, crystal and bright, and the taste of the fragrance is fragrant, fragrant and sweet. The nutritional value is particularly prominent, with an amino acid content of over 7.0%, which is 2-3 times that of ordinary green tea. Place of Origin Introduction Zheng'an County is located in the northeastern mountainous area of ​​the Datun Mountains in the north of the city. It is located in the northern center of Zunyi City, between 28°09′-28°51′ north latitude and 107°4′-107°42′ east longitude. It is 140 kilometers away from Zunyi and 220 kilometers away from Chongqing in the north. The county governs 11 towns, 8 townships and 152 villages (residential), with a total land area of ​​3,892,500 mu, of which the mountainous area is 3,643,500 mu, accounting for 93.6%. The county's total population is 620,000, of which the agricultural population is 570,000, and 200,000 agricultural population is engaged in tea production. Zheng'an is a typical Camerian landform with an altitude of 458 to 1837.8 meters. The terrain in the territory is large, the slope is steep, the gully is vertical and horizontal, the terrain difference is large, and the three-dimensional agricultural climate is obvious. The main features are that there is no cold in winter, no heat in summer, four seasons are clear, rainfall is abundant, rain and heat are in the same season, and the average annual temperature is 16.4 °C. The average annual rainfall is 1100mm-1300mm, the average annual frost-free period is 320 days, the sunshine hours are 1089 hours, and the forest coverage rate is 43%. Zhengan County is mostly carbonate rock-like rock distribution, which belongs to the subtropical northeast plateau yellow soil zone, and the soil type is yellow soil. It is mainly composed of yellow brown soil in the mountains, the soil is mostly acidic, the soil layer is deep and the permeability is good, which is the best soil for the growth of tea trees. Zhengan is far away from big cities and key industrial and mining areas, without industrial pollution, air quality up to the national first-class standards, good water quality, and no pollution. These are the perfect environments for the growth of white tea, which has made it impossible to replicate the production of white tea. Zheng'an County is endowed with unique natural conditions and climatic conditions. It has high content of tea leaves and water extracts, is resistant to brewing, has stable quality and good quality. It is one of the major tea producing counties in Guizhou Province. It has been listed as one of the four key tea industry counties in northern Fujian by the provincial party committee and the provincial government. It has been listed as the third largest county in the tea industry after the Yantan and Fenggang by the Zunyi Municipal Party Committee and the municipal government, and during the “Eleventh Five-Year Plan” period. Achieve the goal of a tea garden area of ​​150,000 mu. Growth characteristics 1. Tea trees grow in an excellent natural environment such as low latitude, high altitude (800-1100 meters), low sunshine, mountain soil, and large terrain cutting. 2. Before the Ching Ming Festival, the tea tree germinates under the conditions of 23 ° C and below, resulting in DNA breakage (chlorophyll can not be synthesized) whitening. Once the environment changes, the white tea alienation will disappear. 3. The scarcity value of limited products is only less than one month of picking and production in the whole year. Product Features 1. The amino acid content is over 9%, which is 2-3 times that of ordinary green tea. According to the Chinese Tea Branch, among the 22 kinds of natural amino acids that the human body cannot synthesize, there are 11 kinds of Zhengan white tea, accounting for 50%. Among them: only the alkane has 3.62%, the arginine contains 2.62%, and the two are as high as 6.24%. For health products. 2, the shape is beautiful, complete and uniform, the color is yellow and green, and the fragrance is long lasting. 3, the soup is bright, the taste is fresh and sweet, and the bottom of the leaves is bright and shiny. Such as the jade is in the hustle and bustle, the essence of the heavens and the earth, the beauty of purity, the innocence of white.

Zhengan white tea quality technical requirements (a) variety. White leaf one. (2) Site conditions. The altitude is 500m to 1100m, the soil type is red soil or yellow soil, the soil pH is 5.0 to 6.5, the soil thickness is ≥50cm, and the organic matter content is greater than 1.0%. (3) Cultivation management. 1. Nursery: cutting seedlings are used. 2. Colonization: The planting time is from mid-February to early March or late October to late November. Planting density ≤ 45000 plants / hectare. 3. Fertilization: Annual application of decomposed organic fertilizer ≥30000kg/ha. 4. Environmental and safety requirements: The use of pesticides, fertilizers, etc. must comply with relevant national regulations and must not pollute the environment. (4) Harvesting and processing. 1. Fresh leaf picking: (1) Picking time: from early March to early May. (2) Picking criteria: one bud and one leaf are initially displayed to one bud and two leaves. 2. Processing technology: fresh leaves → greening → greening → initial baking → baking 3. Process requirements: (1) greening: fresh leaf thickness 5cm to 10cm, apricot time 6 to 8 hours, fresh leaf water loss rate 10% to 15%, it should be lightly turned over during the agitation process. (2) Killing: The pot temperature is controlled at 200 ° C to 250 ° C. (3) Initial baking: The drying temperature is about 130 ° C, and the thickness of the material layer is 0.5 cm. (4) Baking: The temperature is controlled at 80 ° C to 100 ° C, and the moisture content of the finished tea is ≤ 6.5%. (5) Quality characteristics. 1. Sensory features: Grade quality, first-class shape, strong and strong, straight and strong, straight and bright white, bright and white, with aroma, high aroma, rich and high-smelling taste, refreshing and sweet soup, green and fresh green leaves The bottom is soft, bright, soft and even. 2. Physical and chemical indicators: project indicator amino acid (%) ≥ 7.0 water extract (%) ≥ 383. Safety and other quality technical requirements: product safety and other quality technical requirements must comply with relevant national regulations.

Apply to：
Producers within the scope of Zhengan white tea production area may apply to the Zhengan 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 reported to the AQSIQ for approval. The statutory testing agency of Zhengan White Tea is designated by the Guizhou Provincial Bureau of Quality and Technical Supervision.