🛠️ Invention or technique

SL28 and SL34 coffee varieties

Variedades de café SL28 y SL34

Date
c. 1935 · confidence medium
Place
Kabete, Nairobi, Kenya
Credited to
Scott Agricultural Laboratories
Field
Life & health

What it is

Arabica coffee selections made in the 1930s at Kabete from drought-resistant plants. They give a cup of high acidity and aroma and became the basis of Kenya's high-end coffee.

The SL28 and SL34 selections were made in the 1930s (the exact release date varies by source); their genetic origin is attributed to Tanzanian and Bourbon varieties.

What it led to

  • Kenyan specialty coffee at international auctions
  • smallholder producers in the Kenyan highlands
  • later crosses to improve resistance to leaf rust and coffee berry disease

Built on

  • Use of Arabica coffee in the Kaffa forests

Links

Sources✓ verified 2026-11-06