Anaerobic Natural
Secret Stash: Red Sparrow Natural
Roasted by Yardstick Coffee
Yunnan Catimor with anaerobic natural processing delivers white grape and peach sweetness.

From the roaster
China's specialty coffee moment is here, and Yunnan is leading it! Grown in the misty highlands of one of Asia's most unexpected origins, this Catimor is transformed by anaerobic natural processing into something genuinely special: white grape brightness, soft peach sweetness, and a sweet, warm, wine finish that lingers long after the last sip. Approachable and elegant in equal measure.
— Yardstick Coffee
Context
This natural-processed coffee from Yunnan in China represents an intriguing application of anaerobic fermentation to the Catimor varietal. Yardstick Coffee emphasizes the method's capacity to amplify fruit-forward character: white grape brightness pairs with soft peach sweetness, while a wine-like finish suggests the extended anaerobic process has encouraged complex fermentation notes. Natural-processed coffees tend toward heavier fruit expression, and this lot appears to lean into that tendency while maintaining approachable sweetness rather than aggressive funkiness. The combination of regional terroir, varietal character, and controlled fermentation creates a profile worth exploring if you're curious how processing innovation shapes flavor in less traditional coffee origins.
In the Encyclopedia
Frequently asked questions
What does Secret Stash: Red Sparrow Natural taste like?
Expect tasting notes of white grape brightness, soft peach sweetness, sweet, warm, and wine finish.
How is Secret Stash: Red Sparrow Natural processed?
Secret Stash: Red Sparrow Natural uses the Anaerobic Natural process.
More from Yardstick Coffee
View all →Brazil · Washed
Fazenda Santa Monica
Third-generation Brazilian farm coffee with yeast fermentation and complex sweetness.
Kenya · Washed
Kiamabara AA
Bright Kenyan washed coffee from Nyeri with vibrant fruit and balanced structure.
Colombia · Washed
Secret Stash: Los Guaduales Java
Washed Java varietal from Huila with delicate lychee, sweetness, and peach notes.
More Anaerobic Natural coffees
Onyx Coffee Lab · Panama
Panama Finca Deborah Nirvana Gesha
Bright, tart Geisha from Panama with strawberry, rose, and elegant floral notes.
Axil Coffee Roasters · Brazil
Sao Silvestre
Award-winning Brazilian anaerobic natural Yellow Catuai from São Silvestre farm.
Five Senses · Indonesia
Ijen Lestari, Anaerobic Natural
Anaerobic natural from Mount Ijen slopes with lychee, peaches, cream and dried raspberry notes.
Five Senses · Ethiopia
Guji Buku, Anaerobic Natural
Anaerobic natural Ethiopian Guji with jasmine, blueberry, and citrus notes.
Last verified: June 27, 2026 · Browse all beans.