tandemcoffee.com · United States
Oneska - Kenya
Oneska is the small estate farm of Onesmus Njagi, a retired schoolteacher, and his wife, Karen, on the slopes of Mount Kenya in Embu County. Last fall, we visited ahead of harvest and toured their four hectares, where they grow the traditional SL-28 and SL-34 varieties at good altitude and under ideal growing conditions. The name Oneska is a portmanteau of Onesmus and Karen, who established the farm in the early 1990s and have spent decades honing their agronomic and processing practices. They process their coffee using the classic Kenyan “double fermentation”: 20 hours of dry fermentation fol
Merchant's tasting notes: berry jam, black tea, caramel
On the label, as the merchant states it
- Origin
- Kenya
- Region
- Embu
- Producer
- Onesmus and Karen Njagi
- Farm
- Oneska
- Process
- Washed
- Variety
- SL-28SL-34
- Altitude
- 1800,1900 m
- Roast level
- Not stated
tandemcoffee.com confirms the final price, stock and shipping on their own site. Prices below were observed on 30 Oct 2026.
Listed options
| Option | Weight | Listed price | ≈ EUR / 100 g | Observed |
|---|---|---|---|---|
| 8oz / Whole Bean | 227 g | US$20.00 | €7.92 | 30 Oct 2026 |
| 8oz / Fine (Espresso) | 227 g | US$21.00 | €8.32 | 30 Oct 2026 |
| 8oz / Medium-Fine (Stovetop) | 227 g | US$21.00 | €8.32 | 30 Oct 2026 |
| 8oz / Medium (Filter Coffee) | 227 g | US$21.00 | €8.32 | 30 Oct 2026 |
| 8oz / Medium-Coarse (Immersion) | 227 g | US$21.00 | €8.32 | 30 Oct 2026 |
| 8oz / Coarse (Cold Brew) | 227 g | US$21.00 | €8.32 | 30 Oct 2026 |
| 12oz / Whole Bean | 340 g | US$28.00 | €7.40 | 30 Oct 2026 |
| 12oz / Fine (Espresso) | 340 g | US$29.00 | €7.66 | 30 Oct 2026 |
| 12oz / Medium-Fine (Stovetop) | 340 g | US$29.00 | €7.66 | 30 Oct 2026 |
| 12oz / Medium (Filter Coffee) | 340 g | US$29.00 | €7.66 | 30 Oct 2026 |
| 12oz / Medium-Coarse (Immersion) | 340 g | US$29.00 | €7.66 | 30 Oct 2026 |
| 12oz / Coarse (Cold Brew) | 340 g | US$29.00 | €7.66 | 30 Oct 2026 |
EUR reference prices are converted for comparison only; the merchant charges in their own currency.
Merchant
- Name
- tandemcoffee.com
- Type
- Roaster
- Based in
- Portland, United States
- Lists shipping to
- 2 countries (per merchant's listing)
Are you tandemcoffee.com? Show this listing on your site
<a href="https://bestcoffeeroaster.com/coffees/7280a321-2b7c-45f1-ab1a-ae15558b7965?utm_source=badge&utm_medium=referral"><img src="https://bestcoffeeroaster.com/badge/listed.svg" width="220" height="48" alt="Listed on Best Coffee Roaster"></a>