How does Kenya's coffee grading system shape its flavor?
Kenya is a leading African specialty coffee origin, and its coffees are mostly washed and known for berry and fruit notes, sweet aroma and firm acidity. Core growing areas include Nyeri, Kirinyaga and Murang'a, where SL28, SL34, Bourbon and Ruiru 11 are planted. The country uses a detailed grading system running from E down to MH/ML.
The industry began with Arabica coffee trees introduced from Yemen in the 19th century, which brought limited returns, until St. Austin missionaries brought Brazilian seedlings, now widely believed to be Bourbon, in 1893. Grades are set by screen size and bean condition: E for elephant bean above screen 18, AA for screen 17 to 18, AB for a mix of A and B, plus TT, PB, C, T, HE and UG.
Kenya is an important representative of African specialty coffee. Although it borders Ethiopia, the true development of its coffee industry went through a winding process from introduction of seeds from Yemen to the arrival of Brazilian Bourbon seedlings. Today, Kenya's core producing regions include Nyeri, Kirinyaga, and Murang'a, where SL28, SL34, and other varieties are mainly grown, and a refined grading system from E to MH/ML has been established. Kenyan coffee is mostly washed-processed and is known for its distinct berry and fruit notes, sweet aroma, and firm acidity. This article will systematically outline the origins, current status, grading system, and flavor characteristics of Kenyan coffee to help coffee enthusiasts fully understand the unique charm of this producing region. Front Street Coffee will also combine product information to provide readers with more specific references.
The Origins of Kenyan Coffee
When discussing the African coffee landscape, one cannot avoid Kenya, which borders Ethiopia, the birthplace of coffee. Despite their geographical proximity, the Arabica coffee trees introduced from Yemen in the 19th century did not bring much considerable return to local coffee cultivation. The turning point came in 1893, when the St. Austin missionary society brought coffee seedlings from Brazil into Kenya (now widely believed in the industry to be Bourbon), after which the coffee industry gradually grew stronger.
The Current State of Kenyan Coffee
Kenya's main coffee-producing regions include Nyeri, Kirinyaga, and Murang'a. In addition, Embu and Laikipia are also relatively common. In terms of varieties, the main ones are SL28 and SL34, selected by Scott Laboratories, along with Bourbon introduced from Brazil and Ruiru 11. In recent years, a new variety called Batian has also appeared.
Kenya's Coffee Grading System
E: Elephant bean, above screen 18, relatively low production
AA: Screen 17-18
AB: Screen 15-16, a mixture of Grade A (above screen 17) and Grade B (above screen 16)
TT: Light beans removed from AA and AB by an air separator
PB: Round beans above screen 15
C: Screen 12-14, as well as light beans from PB after processing by an air separator
T: Below screen 12, with more defective beans, light beans, and broken beans
HE: Beans that do not fall into any of the above grades
UG: Green beans that have not undergone official standard grading
MH/ML: Sun-dried coffee beans, generally regarded as lower quality
The Flavor of Kenyan Coffee
Kenyan coffee is mostly processed by the washed method and is known for its distinct and complex berry and fruit flavors, accompanied by a sweet aroma and solid acidity.
The above content is compiled by CoffeeHunters, a coffee news website.
