Sourcing Nyeri Arabica AA: The Crown Jewel of Specialty Green Coffee
For green coffee buyers, quality managers, and specialty roasters seeking the pinnacle of East African Arabica, Nyeri Arabica AA represents the world standard for complex acidity and bold flavor intensity. Grown at extreme elevations along the high slopes of Mount Kenya, this iconic Screen 18 harvest yields dense, mineral-rich seeds celebrated for their electric phosphoric acidity, blackcurrant brightness, and syrupy body. Discover how Maytac International Partners provides direct, fully traceable access to export-ready Nyeri Arabica AA lots tailored for high-scoring specialty programs.
The Nyeri Terroir: Why Mount Kenya Yields Unrivaled Quality
Nyeri County sits squarely along the high-elevation volcanic slopes between Mount Kenya and the Aberdare Mountain Range. This legendary growing district is globally recognized as the epicenter of East Africa's finest specialty Arabica.
Coffee trees in Nyeri thrive at extreme altitudes ranging from 1,700 to 2,200 meters above sea level. The high elevation creates dramatic diurnal temperature swings—warm days followed by crisp highland nights—which significantly slow the development of the coffee cherry. This extended maturation window allows sugars to concentrate deeply within the seed while absorbing rich minerals from deep, dark-red volcanic soils.
+-------------------------------------------------------------------+
| NYERI HIGH-ALTITUDE TERROIR |
+-------------------------------------------------------------------+
| | |
v v v
+--------------+ +--------------+ +--------------+
| 1,700m–2,200m| | RED VOLCANIC | | SLOW CHERRY |
| ELEVATION | | SOIL MATRIX | | MATURATION |
| High density | | Phosphoric & | | Concentrated |
| seed matrix | | malic minerals| | organic sugar|
+--------------+ +--------------+ +--------------+
The resulting cup is unmatched in energy and clarity: a sparkling, multi-layered acidity profile anchored by deep blackcurrant, dark plum, white floral, and juicy grapefruit flavor notes.
Physical Specifications & Cultivar Breakdown
Grade AA represents the absolute top tier of physical bean sizing under official Kenyan coffee grading regulations. Nyeri Arabica AA lots sourced through Maytac are mechanically processed across screen sizes 17 and 18 (7.14mm+ mesh), ensuring exceptional physical screen footprint, heavy density, and visual consistency across every bag.
+-------------------------------------------------------------------+
| NYERI ARABICA AA CULTIVAR BLEND |
+-------------------------------------------------------------------+
| |
v v
+-----------------------+ +-----------------------+
| SL-28 | | SL-34 |
| Heirloom Bourbon line | | High-altitude selection|
| Electric acidity & | | Deep syrupy body & |
| iconic blackcurrant | | dark fruit complexity |
+-----------------------+ +-----------------------+
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SL-28: The world-famous heritage cultivar responsible for Kenya's signature wine-like, phosphoric acidity and intense blackcurrant fruit clarity.
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SL-34: A high-altitude selection that thrives under Mount Kenya’s heavy rainfall, contributing heavy structural mouthfeel, sweet citrus, and lingering floral aromatics.
Traditional Double-Washed Processing Protocols
To highlight the intrinsic beauty of Mount Kenya's terroir, Nyeri Arabica AA undergoes Kenya’s famous, labor-intensive post-harvest wet milling protocol:
1.Selective Hand Harvesting:
Smallholder cooperative farmers selectively hand-pick only peak-ripe red cherries, delivering them to local factories (wet mills) on the day of harvest.
2.Primary Dry Fermentation:
Cherries are mechanically pulped and channeled into open concrete tanks to undergo dry fermentation for 24 to 36 hours, naturally breaking down the thick mucilage layer.
3.Channel Density Grading & Rinsing:
Parchment is washed in cold mountain stream channels where wooden paddles agitate the seeds. The densest, highest-grade beans (Parchment 1) drop out first, separating them from lighter seeds.
4.Secondary Dry Fermentation:
Top-tier parchment moves to a second dry fermentation tank for an additional 12 to 24 hours to strip all microscopic mucilage remnants from the seed seam.
5.24-Hour Soaking & Bed Drying:
After a final rinse, the coffee is submerged in tanks of pristine mountain water for up to 24 hours to equalize seed moisture, followed by 7 to 14 days of sun-drying on raised African beds until reaching a stable 10.5%–12.0% moisture target.
Commercial Technical Profile & Wholesale Specifications
| Feature / Spec | Technical Parameter |
| Origin / District | Nyeri County, Mount Kenya Slopes |
| Altitude Range | 1,700m – 2,200m Above Sea Level |
| Grade / Screen Size | Grade AA (Screen 17/18 — 7.14mm+ Mesh) |
| Moisture Content | 10.5% – 12.0% (GrainPro Lined Export Packaging) |
| Varietal Composition | 100% High-Altitude SL-28 & SL-34 |
| Processing Method | Traditional Fully Washed (Double Fermentation + Soak) |
| SCA Cupping Score Range | 81.50 – 86.50+ Points |
| Flavor Profile | Blackcurrant, Dark Plum, Meyer Lemon, Jasmine, Sugarcane |
| Export Packaging | 60 Kg GrainPro-lined Jute Bags |
| Supply Availability | Direct Sales Window & Export Spot Allocation |
Roasting Traits & Menu Applications
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Filter / Pour-Over Feature: Light to medium roast profiles unleash Nyeri AA’s signature phosphoric energy, explosive fruit clarity, and sweet floral aromas. It is the quintessential flagship single-origin offering for specialty coffee menus.
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Espresso Integration: A medium roast brings out a heavy, syrupy body reminiscent of dark chocolate-covered cherries, adding unmatched sweetness and brightness as a standalone espresso or a high-impact blend component.
Partnering with Maytac International Partners for Nyeri AA Sourcing
Securing authentic, high-scoring Nyeri Arabica AA requires direct relationship management, quality control, and rapid export execution. At Maytac International Partners, we bridge the gap between Mount Kenya smallholder cooperatives and global specialty roasters.
We manage the entire chain of custody—from pre-shipment sample preparation and physical screen validation to hermetic export packaging and container dispatch through the Port of Mombasa.
How to Order Your Green Coffee Sample Lot:
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Contact Our Sales Team: Reach out with your desired volume, physical grade requirements, and target delivery timeline.
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Receive Pre-Shipment Sample: We dispatch fresh green sample lots directly to your roastery laboratory for physical grading and cupping evaluation.
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Approve & Secure Contract: Once you validate the score and flavor profile, we lock in your contract via the Direct Sales Window or export allocation.
Direct Sales & Wholesale Inquiries
Contact our green coffee export team today to request current cupping offer sheets, sample dispatch, and volume pricing:
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Email: info@maytacinternationalpartners.com
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Website: www.maytacinternationalpartners.com
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Phone / WhatsApp: +254 737 600 800
FAQs
Why is Nyeri Arabica AA considered one of the highest-scoring coffees in the world?
Nyeri's combination of extreme altitude (up to 2,200m), rich volcanic soil, heritage SL-28/SL-34 genetics, and double-washed processing results in dense beans packed with complex sugars and phosphoric acid, regularly yielding SCA cupping scores between 81.5 and 87.5+ points.
What is the difference between Grade AA and Grade AB from Nyeri?
Grade AA refers to larger physical screen sizes (Screen 17/18, or 7.14mm+), whereas Grade AB consists of Screens 15/16. While both grades come from the same farms and processing batches, Grade AA beans represent the boldest physical size and command a higher market premium.
How does Maytac preserve green coffee quality during ocean shipping?
All Nyeri Arabica AA export lots are packed in food-grade GrainPro hermetic bags inside high-quality jute sacks. This hermetic barrier preserves internal moisture (10.5%–11.5%) and protects the green coffee from ambient humidity fluctuations during ocean transit.
Can we purchase Nyeri Arabica AA through direct sales contracts?
Yes. Maytac exports Nyeri Arabica AA through Kenya’s Direct Sales Window, allowing roasters and importers to contract specific, fully traceable cooperative lots outside the standard NCE weekly auction system.
What is the minimum order quantity for sample and commercial purchases?
We provide representative green samples for evaluation to qualified buyers. Commercial wholesale contracts start at a minimum order volume of 100 kg, packaged in standard 60 kg GrainPro jute export bags.