The Origin and Development of Kenya AA Grade Kirinyaga Kabare Koinangoi Processing Station Premium Coffee Beans

Kenya SL28 & SL34: Unique Varieties

According to the botanists at Scott Laboratories, SL28 and SL34 are genetic variants. SL28 carries mixed lineage from French Mission, Mocha, and Yemeni Typica, and it was originally bred to mass-produce beans combining high quality with pest and disease resistance.

SL28 never hit those yield targets, but its copper-colored leaves and broad, bean-shaped seeds produce wonderful sweetness, balance, and complex, varied flavors, along with distinctive citrus and dark plum characteristics. SL34 tastes similar to SL28 — complex acidity and a lovely sweet finish — but with a heavier, richer mouthfeel and an even cleaner cup. SL34 carries French Mission, Bourbon, and further Typica lineage; it looks much like SL28 but tolerates sudden heavy rains better. Between them, these two varieties define the classic Kenyan style: intense yet refined fruit acidity, a rich mouthfeel, and beautiful balance.

Flavor Profile

Intense lemon and plum aromas in both the dry and wet fragrance. Roasted light, it opens with stunning floral and lemon notes and a sweet-tart juiciness like grapefruit green tea and citrus juice. Take the roast slightly deeper and honey and raspberry–black plum flavors emerge, with a green-tea sweet-tart aftertaste.

Origin & Processing

This coffee comes from the Kongyu Processing Station of the Kabare Cooperative Society in Kenya's Kirinyaga region. It uses the Kenyan double-washed method and grows on the eastern slopes of Mt. Kenya in Mathaita, Embu County, at 1,550-1,750 meters, from the classic SL28 and SL34 varieties. Combined with the large day-night temperature swings and Kenya's red phosphorus-rich soil, sweet and tart notes form this coffee's flavor foundation.

The fresh cherries for this Kongyu AA are picked and processed by 250 farmers working with the station under the Kabare Farmers' Cooperative Society. After depulping, fermentation, and washing with water from the nearby Kongyu River, the coffee dries on African raised beds. Each harvest season the farmers process nearly 300 tons of fresh cherries. Finished lots then enter the weekly coffee auction held every Wednesday in Nairobi, and once bought by licensed exporters, they ship to consumer markets worldwide.

Our Impression

With past Kenyan coffees we always chased those sharp, powerful fruit acids. This one taught us gentleness — like standing by the sea with a soft breeze on your face.

Product Information

Brand: FrontStreet Coffee
Shelf Life: 90 days
Net Weight: 227 g
Packaging: Bulk coffee beans
Roast Level: Roasted beans
Sugar Content: Sugar-free
Origin: Kenya
Coffee Type: Other
Roast Degree: Light roast

Technical Specifications

Country: Kenya
Grade: AA
Region: Kirinyaga
Altitude: 1,550-1,750 meters
Soil: Red phosphorus soil
Processing Method: Kenyan double-washed
Varieties: SL 28, SL 34
Processing Station: Kongyu Processing Station
Producer: Kabare Cooperative Society
Flavor: Grapefruit green tea, citrus, raspberry–black plum

About Kenya Coffee

Kenya, in East Africa, is one of the major coffee-producing countries. Roughly 6 million people nationwide work in the coffee industry, mostly in a mix of smallholder farms and cooperatives.

Kenya's coffee grows mostly at 1,400-2,000 meters, in regions including Ruiri, Thika, Kirinyaga, Mt. Kenya West, Nyeri, Kiambu, and Muranga — primarily on the foothills of Mt. Kenya and the Aberdares. Many Kenyan growing regions work to preserve native forest ecosystems, protect natural gene banks, support wild-variety propagation, and nurture diverse coffee trees. It was in exactly such a favorable environment that Kenya's signature varieties SL28 and SL34 were bred and named by Scott Laboratories in 1930.

FrontStreet Coffee Recommendation

Washed processing is the traditional way of using water to transform coffee fruit: flotation, depulping, soaking and fermenting to strip the mucilage, more washing or further soaking, then drying, hulling, and storage. The long soak drives chemical changes inside the bean that consume much of its simple sugars while increasing organic acids — so washed coffee keeps more of the bean's own aromatics while gaining bright fruit acidity, cleanliness, and freshness.

The most famous washed coffee at FrontStreet Coffee is the Kenya "Cherry Tomato," a superb example of the Kenyan double-washed method. Repeating the wash cycle — flotation, fresh-water soaking, washing off residual mucilage, another soak, then drying, hulling, and storage — pushes the juiciness to the extreme: aromas of cherry tomato, dried dark plum, snow pear, black plum, and yellow sugar, with a sweet-tart, juicy mouthfeel that makes it a favorite of serious coffee players. If you loved the Kongyu AA described above, this is the natural next step.

For washed coffee with a gentler side, try the Yirgacheffe Adado cooperative lot — produced by a small, skilled washing team in Adado village whose coffee was unearthed precisely because it is so refined and clean. Washed processing lets the jasmine florals and bright citrus acidity show at their fullest, and at a medium-light roast the cup gains green-tea and honey tones; it suits pour-over, cold brew, and espresso alike. And if you want the washed method's balance above all, FrontStreet's Jamaica Blue Mountain No. 1 — washed to protect the beans on Jamaica's short-sunshine island climate — delivers hazelnut, cream, chocolate, and caramel with nothing out of place in any direction.