Kenya

Kenyan coffee is the loudest cup in the African lineup. Most of it comes from the central highlands around Mount Kenya — Nyeri, Kirinyaga, Kiambu, Murang'a, Embu — where smallholder farmers deliver cherry to washing stations ("factories") attached to cooperative societies. The SL-28 and SL-34 varieties, developed by Scott Labs in the 1930s, remain the genetic backbone of the industry and are the reason Kenyan coffee tastes the way it does: dense, wine-like, with a savoury undertow that reads as tomato leaf, black tea, and the skin of ripe blackcurrant.

The processing is unmistakable. Kenyan "double fermentation" (sometimes called 72-hour washed or Kenya washed) runs cherry through a traditional ferment-and-wash cycle, then soaks the parchment coffee in clean water for another 12-24 hours. The extended contact is what produces the bright, almost vinous acidity — citric and malic balanced against something deeper and more savoury. Drying happens on raised beds for two weeks under careful turn schedules. The result is a cup with more structure than almost anywhere else in the world.

The grading system (AA, AB, PB, C, TT, T) sorts beans by size and density, with AA being the largest and typically the most desirable. Peaberries (PB) get their own grade and often taste more concentrated than the main lots from the same farm. The weekly Nairobi Coffee Exchange auction has been the primary trading channel for decades, though direct-trade relationships between washing stations and specialty roasters have been eroding that model since the early 2010s.

Kenyan yields have been declining — aging trees, land fragmentation, and farmers switching to more profitable crops like avocado have all squeezed production. Price per pound has held up because quality has held up, but the long-term supply question is real.