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Terraform Coffee Roasters

Boma Washed SL28 & SL34 & Batian | Kenya

£12.00

  • Pomelo, Prune, Blackcurrant
Roast
Size
Roast Date

Only 3 left!

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Additional information

Coffee Details

Country of Origin
Kenya
Region
Kericho
Varietal
Batian, SL28, SL34
Process
Washed
Roast Level
Light
Producer
Boma Farmers Cooperative Society
Farm
Boma
Altitude
1950 masl

What to expect

In the cup you can find

Pomelo, Prune, Blackcurrant

Overall profile

Prune and blackcurrant depth up front, with a bright pomelo citrus character rounding out the finish.

Sensory profile

Acidity
3/5
Body
3/5
Sweetness
4/5
Funk
1/3
Adventurous
3/5

About Terraform Coffee Roasters

Founded in Shanghai in 2019, Terraform Coffee Roasters is a prominent Chinese specialty coffee roastery known for its focus on light, ultra-clean roast profiles and high transparency. The roastery places a strong emphasis on classic washed processing, aiming to showcase delicate florality, vibrant fruit structure, and distinct terroir. 

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Roaster notes

Kenya — Boma Farmers Cooperative Society SL28, SL34 & Batian (Washed)

Tastes Like — 🍑 Prune • 🫐 Blackcurrant • 🍈 Pomelo

DETAILS

  • Producer: 1,346 smallholder farmers, Boma FCS
  • Washing Station: Boma
  • Region: Tenwek, Rift Valley, Kericho, Kenya
  • Varietal: SL28, SL34 & Batian
  • Process: Washed
  • Elevation: 1,950 masl
  • Harvest: December 2025

INTRO
Boma Washing Station, operated by the Boma Farmers Cooperative Society in Tenwek, roughly 80km west of Kericho in Kenya's Rift Valley — prune and blackcurrant depth meet the bright citrus character of pomelo, creating a layered, expressive fruit profile. In the cup: prune, blackcurrant, and pomelo.

THE PRODUCER
Established in 1999, Boma Farmers Cooperative Society serves surrounding smallholder farmers and currently consists of 1,346 members, producing around 850,000 kilograms of coffee cherries annually. Women and young farmers make up a significant portion of the membership, with female representation in both management and the cooperative's board. Overseen by a nine-member board of directors and three supervisory committee members, the cooperative employs eight full-time staff year-round and up to 48 workers during the peak September-to-December harvest season. Most members manage small farms with approximately 300-400 coffee trees, growing SL28, SL34, and Batian on fertile volcanic soils under reliable rainfall and cool mountain temperatures — conditions that slow cherry maturation and contribute to the cup's distinctive quality and complexity.

THE PROCESS
Freshly harvested cherries were depulped and processed using the washed method. Following fermentation, the coffee was thoroughly washed, then dried on raised African beds for 14-21 days until reaching approximately 10-12% moisture, before hulling and grading.

The slow, cool-climate cherry maturation is the defining factor here — it's what builds the layered complexity behind the prune and blackcurrant depth, with a bright pomelo citrus character cutting through.

THE CUP
Layered and expressive — prune and blackcurrant depth up front, with a bright pomelo citrus character rounding out the finish. A classic, community-rooted expression of Kericho's terroir.

Flavour Notes
🍑 Prune 🫐 Blackcurrant 🍈 Pomelo

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Country of Origin

Kenya, Africa

In this coffee

Prune and blackcurrant depth up front, with a bright pomelo citrus character rounding out the finish.

  • Pomelo
  • Prune
  • Blackcurrant

About this origin Kenya’s high elevations, distinctive varieties and carefully managed washing stations produce some of coffee’s most vivid profiles. Expect blackcurrant, grapefruit and berry notes, intense sweetness and a bright, wine-like acidity.

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Coffee Process

Washed

In this coffee

Prune and blackcurrant depth up front, with a bright pomelo citrus character rounding out the finish.

  • Pomelo
  • Prune
  • Blackcurrant

How it works The fruit is removed from the coffee seed. Water and fermentation then help clear away the sticky layer before the seed is dried.

Typical influence Washed coffees are often described as clean and bright, with clear flavours, lively acidity and a crisp finish.

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Coffee Varieties

  • Batian
  • SL28
  • SL34

In this coffee

Prune and blackcurrant depth up front, with a bright pomelo citrus character rounding out the finish.

  • Pomelo
  • Prune
  • Blackcurrant

About this variety

Several varieties make up this lot. That can create a layered cup, but their individual flavours cannot be separated honestly after the coffee is combined.

Why this one is different
  • Kenya
  • Kericho
  • 1950 masl
  • Washed

These varieties were grown or combined in Kenya. The producer’s lot details and tasting notes are the best guide to how they work together.

Washed processing can make acidity and variety character easier to read, although fermentation and drying choices still matter.

A little background

The varieties are shown exactly as supplied for this coffee. We do not invent one combined genetic or flavour profile for the group.

Classification Multiple varieties

Technical lineage Each listed variety has its own lineage.

Variety is a guide, not a flavour guarantee. Lot notes are more specific.

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