Rucheng White Downy Tea

Rucheng White Downy Tea

Rucheng White Downy Tea is a geographical indication certification trademark.

　　Rucheng White Downy Tea, also known as Downy Tea, is a sexual variety. It is of small tree type, large leaf category, and an early-maturing strain. It is diploid.

　　Rucheng White Downy Tea is a new green tea product developed from the domestication and cultivation of wild downy leaf tea. Clinical trials involving 64 middle-aged and elderly patients with high blood lipids showed that although both Rucheng White Downy Tea and regular green tea (the control) had good lipid-lowering effects, the differences in their effectiveness on four indicators—serum cholesterol, triglycerides, chylomicrons, and β-lipoproteins—were even highly significant. However, the former performed better and faster than the latter, with the difference in efficacy between the two teas being highly significant. The lipid-lowering effect of Rucheng White Downy Tea is not affected by age or gender, nor does it have obvious side effects. However, once consumption stops, its lipid-lowering effect disappears, similar to other lipid-lowering medications.

　　A rare and precious large-leaf, hairy wild tea in China. It is distributed in the high mountains around Dongling Township in Rucheng County. The tallest tea trees reach 6 meters, with the longest tea leaves measuring 27.8 cm in length and 11.1 cm in width. Rucheng White Downy Tea has large leaves covered with abundant white down, and its buds are thick and sturdy. When brewed, the tea leaves remain tightly upright in the water without sinking for a long time. The brewed tea liquor is rich, bright red, naturally fragrant, and leaves a smooth aftertaste in the throat. Rucheng White Downy Tea possesses unique botanical and biological characteristics. According to analysis by the Hunan Provincial Tea Research Institute, this white downy tea contains 29.83% tea polyphenols, 12.84% catechins, 43.86 mg/g amino acids, 4.27% caffeine, 14.40% theaflavins, and 1.445% thearubigins. The black tea produced from this white downy tea has a strong, robust flavor, high amino acid content, especially high levels of anthocyanidins and theaflavins, making it an excellent variety for black tea.

　　Rucheng White Downy Tea – Origin and Distribution

　　Originally native to the Jiulong Mountain area and adjacent regions in Sanjiangkou Yao Ethnic Town, Rucheng County, Hunan Province, with a distribution area of about 700 hectares. It has been introduced in places such as Changsha, Hunan. In 1987, it was recognized as a provincial-level variety by the Hunan Provincial Crop Variety Approval Committee.

　　Rucheng White Downy Tea – Characteristics

　　The plant is relatively tall with a fairly straight main stem, semi-spreading tree posture, sparse branching, and leaves that are slightly upward-slanting. The leaves are long elliptical or oval-shaped, with a greenish-yellow color, slightly raised leaf surface, pointed leaf tips, deep leaf serrations, and thick, hard leaf texture. The buds and leaves are yellow-green with abundant down, and the weight of 100 buds and three leaves is 59.2 g. The flower diameter is 3.8–4.0 cm, with 6–9 petals, a hairy ovary, a three-lobed style, and hairy sepals. The seed diameter is 1.4 cm, and the weight of 100 seeds is 119.5 g.

　　Rucheng White Downy Tea – Properties

　　The buds and leaves grow quickly. The spring tea sprouting period is in mid-March. The yield is moderate. The dry sample of one bud and two leaves of spring tea contains approximately 2.9% amino acids, 36.5% tea polyphenols, and 3.8% caffeine. It is suitable for making black tea and green tea, both with excellent quality. When processed into black broken tea, it has a brownish-red, glossy appearance with abundant down, a strong aroma with floral notes, a robust taste, and a bright red liquor. When made into green tea, it has plump strips covered with down and a fresh, refreshing taste. It has relatively weak resistance to cold, drought, and adaptability, and its fruiting ability is moderate.

　　Suitable cultivation areas: southern tea-growing regions of Hunan.

　　Rucheng White Downy Tea – Cultivation Essentials

　　Best planted in forested mountainous areas with deep soil layers, loose soil, and no severe winter cold. Plant and prune according to conventional tea garden specifications.