Wenxian is located at the northern edge of tea planting in China. It is located at the junction of southern Shaanxi and northern Sichuan. It is connected to Bashan and Lishui, and belongs to Jiangbei tea area. Before and after the Qingming, Wenxian green tea had a bud and a leaf (a leaf bud wrapped with a tender bud), resembling a flag gun. Its shape is flat and pretty, smooth and even, green and slightly yellow. After brewing, the fragrant scented stalks are long-lasting, the soup is bright, the taste is sweet, the leaves are even, and the flags are shot and intertwined. Wenxian green tea belongs to alpine tea, has a long growth cycle, and has higher amino acid and caffeine content than other teas. It has obvious advantages. It has been well received by experts and peers in the same kind of tea competition in the country. It is a treasure in tea and it is long to drink this tea. It has the effect of refreshing the mind, digesting diuretic, preventing heatstroke and cooling, and resisting radiation. It becomes a labor insurance welfare tea or a gift for friends.

"March 3, good spring, handsome woman picking tea busy..." Wearing a hat, the tea-skinned woman's wrists were turned over, and the song was light in the green tea garden. This is the most beautiful scene in the village tea gardens such as Shuaiping, Liziba and Guanzi in Bikou area. Bikou has a low altitude, a warm climate, abundant rainfall, and rain and fog. It is very suitable for the growth of tea trees. It has a long history of planting tea. According to historical records, it can be traced back to the Daoguang Period of the Qing Dynasty. The most famous is Wenxian Bikou green tea, which is hand-refined by picking delicate buds. The shape is flat, the color is green, the soup is yellow-green, the aroma is high, the taste is strong, and the brewing is good. The name has long been heard inside and outside the province.

Technical requirements for quality of Wenxian green tea I. Variety Closing cream, Fuding Dabai tea; Sexual breeds include Xinyang, Yikeng, Yixing and other varieties suitable for cultivation in the protected area. Second, site conditions The altitude is 600m to 1600m, the soil is yellow brown soil, the pH value is 4.5 to 5.5, and the organic matter content is ≥1%. Third, cultivation techniques Sowing time: planted in two rows, 5 to 6 seeds per hole, and 2 to 3 strong seedlings after emergence. 2. 3. Planting density: ≤ 4,500 plants per 667 m2 (mu). 4. Stereo-pruning: lightly trimmed flat tea cans, after spring tea or late autumn. 5. Environmental and safety requirements: The use of pesticides, fertilizers, etc. must comply with relevant national regulations and must not pollute the environment. Fourth, picking grade 1. Flat green tea picking time and standards: (1) Flat green tea special grade: picking period is the first single bud before Qingming, requiring the bud head to be strong, 1.5 cm to 2 cm long, greenish yellowish, neat and uniform, fresh. (2) Flat green tea level: picking period is a bud and leaf first picked or developed before and after clearing, fresh, length 2 cm to 2.5 cm, soft leaf, greenish yellowish. (3) Flat green tea grade 2: The picking period is a bud-leaf and a bud two-leaf initial pick taken before the rain, with a length of about 2.5 cm to 3 cm, and the color is greenish yellow. 2. The buds are longer than the leaves or buds, the size is uniform, the color is bright green, the buds are intact, and the buds are not allowed. (2) Curly-shaped green tea level: It is a bud two-leaf or a bud three-leaf initial exhibition, requiring one bud and two leaves to occupy 40% to 50%, the bud leaves are equal in length, the size is basically the same, the color is bright, and the bud leaves are intact. (3) Curly-shaped green tea secondary: it is a bud two leaves, a bud three leaves or a pair of two or three leaves, requiring one bud and two leaves to account for 30% to 35%, and the color is green and uniform. 3. Picking method: picking the hand, not picking or grabbing, keeping the leaves intact, fresh and even. Fifth, the processing technology Process: (1) Flat green tea: fresh leaf classification → agitation → greening → strips → shape (squashed) → drying → packaging → storage. (2) Curly green tea: fresh leaf classification → greening → greening → 揉捻 → deblocking → rationale → shape → drying → fragrant → packaging → storage. 2. To kill the leaves should be uniform, should follow the "high temperature to kill, first high and then low; throw boring combination, more throw less boring; young leaves old kill, old leaves and kill" principle of choice of different tools, temperature and time. When making the shape, adjust the temperature according to the principle of first high and then low, and carry out the processing and shaping. The temperature of the flat tea frying pan is 70 ° C to 80 ° C. The technique is to combine shaking, plucking, pushing and grinding. When the curly tea is mechanically smashed, the amount of leaf throwing should be 85% of the volume of the stalks, and the principle is: light-heavy-light principle, that is, the tender leaves are lightly pressed, the old leaves are pressed and pressed, and the tenderness is long. The leaves are cold and the old leaves are warm. Sixth, quality characteristics Sensory features: (1) Flat tea: the shape is flat and straight, the color is green and oily, the soup is green and bright, the aroma is high, the taste is sweet and fresh, and the leaves are tender and bright. (2) Curly tea: the shape of the strip is curly, tight and even; the color of different grades of tea varies from green to dark green; the aroma is high, from tender chest to pure; the color of the soup is from bright green to yellowish green, and the taste is mellow; Bright green to yellow green. 2. 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 the production of green tea in Wenxian County may apply to the Wenxian County Bureau of Quality and Technical Supervision of Gansu Province for the use of the “Special Mark for Geographical Indication Products”, which shall be reviewed by the Gansu Provincial Bureau of Quality and Technical Supervision and announced to the General Administration of Quality Supervision, Inspection and Quarantine for approval. The statutory testing agency for Wenxian Green Tea is designated by the Gansu Provincial Bureau of Quality and Technical Supervision.