Juicebox Series – Karimikui AA, Kirinyaga, Kenya (2022)

SKU: KARIMIKUI-2022 Category:



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Producers: smallholder farmers organized around Karimikui washing station
Origin: Kirinyaga County, Kenya
Varieties: SL28, SL34, Ruiru 11, Batian
Processing: Washed after depulping and fermenting, then soaked in clean water and dried on raised beds
Soil: Volcanic loam
Altitude: 1310-1900 masl
Harvest: Dec. 2021
Tasting notes: rosehips, rhubarb, forest berry jam

With sweet purple berry jam, pomegranate, vanilla, and ever more vibrant as the cup cools, this delightful mix of SL28, SL34, Ruiru 11, & Batian varieties are grown by smallholder farmers organized around Karimikui washing station as a part of Rungeto Cooperative in Kirinyaga, Kenya


Karimikui is grown in the Kirinyaga region in central Kenya, where peak harvest is in mid-December, a touch earlier than neighbouring regions like Nyeri.

Growers here typically cultivate approximately 250 coffee trees on half-acre plots. They then deliver ripe fruit to one of 3 factories managed by an umbrella farmers’ cooperative society (FCS) call Rungeto. Smaller in size than other FCS, Rungeto has focused on quality processing and meticulous attention to detail, earning a reputation for delightful coffee and expert processing in Kenya.


Made up by mostly SL28 and SL34, but with likely some Batian and Ruiru 11 in there too as the coffee is made up of cherry grown by many members of the Rungeto FCS, who could be growing any of these 4 varieties.

SL28 is among the most well-known and well-regarded varieties of Africa and of course, Kenya. Originally selected at the former Scott Agricultural Laborato­ries (now the National Agricultural Laboratories, in Kiambu County, Kenya). Individual tree selections made at the Scott Laboratories during the 1935-1939 period were prefixed SL for Scott Labs. Fourty-two trees of various origins were selected and studied for yield, quality, drought and disease resistance. One of the selections came from a single tree in a cluster of coffees growing in what is now Tanzania. This was a variety of Bourbon that has ties to Brazil, before being brought to Tanzania and selected for breeding in 1931. According to historical documents, the senior coffee officer of Scott Labs noticed a variety growing in the Moduli district (Arusha, Tanzania) that appeared to be tolerant to drought, diseases and pests. Seed was collected and brought back to Scott Laboratories, where its drought resistance was confirmed. It was widely distributed and became known as SL28 – now one of specialty coffee’s most beloved varieties for its excellent cup quality.

SL34 is a selection from Scott Laboratories originally from the late 1930’s, more precisely, from a single tree on the Loresho Estate in Kabete, Kenya. Up until a few years ago, it was widely believed in the coffee industry that this was a selection of Bourbon. With genetic testing, however, it shares it’s lineage with the Typica genetic group.

Ruiru 11 was created out of panic around a coffee berry disease epidemic in 1968 that led to the loss of half of Kenya’s production that year. The following decade was the focus of an intensive breeding program to cultivate something disease tolerant, which led to the stocky compact Ruiru 11, which is an Fl hybrid. Since this one relies on hand pollination, it’s not easy to meet the demand for seedstock.

Batian, the new kid on the block, was first cultivated in 2010-11 is tall with pretty huge beans and is a composite variety, meaning it is comprised of many varieties in its lineage, making it a sort of super hybrid. With SL28, SL34, Rume Sudan, N39, K7, SL4 and Timor Hybrid – This one’s known to be tasty and higher yielding.


Only the ripest cherries are delivered, and additional hand sorting and floating is done to remove less dense and damaged fruit before the coffee is depulped, fermented, and washed.

After the coffee is washed, it’s soaked in fresh water for long periods – This process is often called Double Washed or Kenya process, and contributes to the quality through equalizing the seeds moisture before going to the drying tables.

The lot is dried for two weeks on raised beds, which are carefully constructed to ensure proper air circulation and temperature control for optimal drying. When the coffee is milled for export, the green beans are sorted by screen size and graded according to size and shape. Larger beans (17/18 screen) are labelled AA (like this one from Karimikui), 15/16 screen are labelled AB, and the round peaberry are labelled PB, there are also other grades that you don’t often see exported.


We brew all our coffees with municipal water that flows from our taps in Metro Vancouver. This municipal source is very soft, low ppm water (less than 30 TDS)

There are many alternative water recipes out there that will produce tasty cups if your water from the tap isn’t giving you good results. A good place to start is 1/2 strength Third Wave Water of around 60-70ppm (0.16g.-0.2g./L of TWW powder).


We make an effort to taste our coffees in a variety of ways, but mostly use cupping, V60, and Kalita 155 brews as our main ways of quality control and dialling in roast profiles. Our filter recipes can be found in our Journal here:

Kalita 155



We have an open-minded and flexible perspective on brewing coffee and believe that there should be numerous ways to make a tasty cup. While we are focussed on filter brewing and find it to be our personal preference, there’s no rules that limit you to exploring these as espresso too. Since they’re all roasted for filter coffee expect shots that are lighter in body and brighter in acidity that your typical espresso profile.