Taiwan Geisha Anaerobic Natural — JinYunSin Tea Coffee Farm

Roasting now. One of the rarest Geisha expressions in the world — grown in Taiwan's legendary Alishan Mountain tea district and processed using anaerobic natural fermentation. JinYunSin Tea Coffee Farm brings a distinctly East Asian terroir to the Geisha variety: high-altitude fog, volcanic mineral soils, and generations of agricultural precision. The result is a coffee of extraordinary delicacy and depth. Roasted to order in Hilo, Hawaii. Coffee Details Origin: Alishan Mountains, Taiwan Farm: JinYunSin Tea Coffee Farm Elevation: 1,200–1,400 MASL Variety: Geisha Process: Anaerobic Natural Roast: Light Roast Harvest: 2025–2026 Flavor Profile This anaerobic natural Taiwan Geisha reveals a distinctive profile shaped by high-altitude terroir and meticulous fermentation: Lychee Passionfruit White jasmine Oolong tea Ripe apricot Brown sugar sweetness The cup offers a uniquely silky, tea-like texture — reminiscent of the high-mountain oolong teas grown on the same slopes — with tropical fruit intensity, vibrant floral aromatics, and a long, clean finish. JinYunSin Tea Coffee Farm — Where Tea Meets Coffee JinYunSin Tea Coffee Farm sits in Taiwan's Alishan Mountain region — a district world-renowned for producing some of Asia's most prized high-mountain oolongs. The farm is operated by a tea-farming family that turned their expertise in altitude cultivation and fermentation toward specialty coffee, applying tea-processing sensibility to every stage of production. The Alishan Mountains rise above 1,200 MASL, draped in cool morning fog and blessed with volcanic mineral soils. These conditions — nearly identical to those that make Alishan oolong tea so sought-after — slow cherry maturation and concentrate aromatic compounds in the coffee bean. The result is a coffee with unusual clarity, restraint, and aromatic complexity. Taiwan produces a remarkably small volume of specialty coffee each year, and lots of this quality rarely reach the international market. This is among the most distinctive origins we have ever sourced. Anaerobic Natural Process In anaerobic natural processing, whole coffee cherries are sealed in oxygen-free fermentation tanks before being dried on raised beds. Without oxygen, fermentation develops at a slower, more controlled rate — producing complex organic acids and aromatic compounds that amplify the coffee's natural fruit character while preserving varietal clarity. JinYunSin applies their tea-processing expertise directly to fermentation management: monitoring temperature, pH, and fermentation time with the same precision used in high-mountain tea production. The result is a lot with exceptional consistency, vibrant fruit intensity, and the clean, tea-like finish that defines the farm's style. Brewing Recommendations This coffee rewards methods that highlight delicacy, aromatic lift, and tea-like texture: Pour-over (V60, Origami) Soft water recommended for clarity AeroPress at lower temperature for sweetness and fruit Brew at 195–200°F. Serve in a tulip-shaped cup or tea vessel to fully appreciate the aromatic complexity. This coffee also performs beautifully as a cold brew concentrate — the lychee and passionfruit notes intensify dramatically. Explore our full Geisha Coffee Collection — including Panama, Guatemala, and Kona Geisha lots. For another exceptional anaerobic fermentation lot, try our Panama Geisha Mama Cata Estate Anaerobic Natural.