Kenya

A Country Devoted to Quality

Kenya is not a large producer by global standards, yet it is one of the most distinctive origins in specialty coffee — thanks to its SL28 and SL34 varieties, high-altitude volcanic red soils, and rigorous processing and trading systems.

History

Missionaries introduced coffee to Kenya in the late 19th century. In the 1930s Scott Agricultural Laboratories selected SL28, SL34 and other varieties, laying the foundation for Kenya's flavor profile. During the colonial era Kenyans were barred from growing coffee until the 1950s; today most coffee is produced by smallholders through cooperatives.

Trading and Grading

Kenya grades primarily by screen size:

• AA: screen 17–18, the largest beans
• AB: screen 15–16, the most common grade
• PB (peaberry): round beans from cherries with a single seed
• C, TT, T: smaller or lighter beans

Note that grades reflect size, not cup quality — there is wide variation within each grade. Coffee is traditionally sold through weekly auctions at the Nairobi Coffee Exchange (NCE), while the "Second Window" lets buyers purchase directly from cooperatives and estates.

Major Growing Regions

Nyeri

Between Mount Kenya and the Aberdare Range, with fertile red soils — Kenya's most prestigious region, with intense, layered cups.

Kirinyaga

On the southern slopes of Mount Kenya, known for outstanding sweetness and complex fruit acidity.

Murang'a

A traditional region producing full-bodied coffees with blackberry notes.

Embu and Kiambu

Embu lies southeast of Mount Kenya; Kiambu, near Nairobi, is home to many historic estates.

Two Harvests

With two rainy seasons, Kenya has two harvests: the main crop, roughly October to December, and the fly crop, roughly April to June. The main crop is usually higher quality.

Processing

Kenya is famous for its distinctive washed process:

• Double fermentation: after pulping, beans undergo a first dry fermentation and washing, then a second fermentation under water, before drying on raised beds. The long process creates an exceptionally clean, bright cup

Common Varieties

SL28 and SL34 define the flavor; Ruiru 11 and Batian are disease-resistant varieties, and Batian's cup quality is increasingly recognized.

Flavor Profile

• Blackcurrant and plum
• Grapefruit, tomato and cranberry
• Intense, juicy acidity, often described as phosphoric-like brightness
• Exceptional clarity

Brewing Tips

Kenyan coffee suits light to medium-light roasts brewed as pour-over to show off its juicy acidity. Try 92–94°C water and a 1:15–1:16 ratio; if the acidity feels too sharp, grind a little finer or extend the brew so sweetness keeps up.