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Kenyan Pour-Over Coffee: Coffee Brightness, SL28 and SL34

December 30, 2019
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What makes Kenyan coffee so bright and juicy

Kenyan coffee delivers the layered sweet-and-sour character that Yirgacheffe and Panama Geisha are known for, but with its own profile: dark plum, cherry tomato, and yellow sugar. SL28 and SL34 are the main varieties, and most lots go through a double washed process. On the palate the cup reads clean and juicy, closer to fresh-pressed fruit juice than to a heavy, syrupy brew.

The brightness comes largely from processing and soil. Kenyan washing can run about 72 hours: 48 hours of fermentation that clears the mucilage, then a 24-hour soak in clean water, a method called double fermentation or double soak. Combined with Kenya's high-phosphoric-acid soil, SL28 shows stone fruit and citrus, while SL34 leans toward fruit acidity with nutty and spicy notes.

When it comes to pour-over coffee with prominent fruit acidity, most people first think of Ethiopia's Yirgacheffe, Huakui, or Panama's Geisha, not realizing that Kenyan coffee also boasts layered sweet-and-sour aromas and a juicy mouthfeel. Kenyan coffee usually undergoes a double washed process, with SL28 and SL34 as the main varieties. Its flavor is bright and clean, featuring signature notes of dark plum, cherry tomato, and yellow sugar. This article will systematically introduce the unique charm of Kenyan coffee, from processing methods and variety characteristics to roasting choices and specific brewing parameters, and recommend Front Street Kenya·Cherry Tomato coffee beans along with Front Street Coffee's brewing recipe, helping coffee lovers recreate a classic Kenyan flavor profile at home.

Kenyan Hand-Pour Coffee Bean Brand Recommendations: A Full Analysis of SL28/SL34 Variety Flavors and Brewing Parameters

When it comes to pour-over coffee beans known for their fruit acidity, many people can only think of Ethiopia's Yirgacheffe, Huakui, or Panama's Geisha, not realizing that Kenyan coffee also contains abundant sweet-and-sour aromas, presenting a freshly squeezed juice-like texture on the palate. Kenyan coffee mostly uses a double washed process, with SL28 and SL34 as the representative varieties.

The outstanding flavor of Kenyan coffee is inseparable from its meticulous washing process. Generally speaking, the washed fermentation time for Central and South American coffee beans does not exceed 36 hours, while Kenya's washing process lasts as long as 72 hours—after 48 hours of fermentation, the mucilage is completely removed, followed by a 24-hour soak in clean water. This unique washing process is called "Kenyan double fermentation" or "double soak" washing method. It is this extra fermentation step that gives the coffee its stunning brightness and cleanliness.

SL28 has distinct dark plum and citrus notes, presenting a rich and deep stone fruit acidity, with a full-bodied and sweet taste, somewhat reminiscent of wine; SL34 features pleasant fruit acidity, accompanied by nutty and spicy notes. These unique flavors, achieved in conjunction with Kenya's high-phosphoric-acid soil, break the long-held stereotype that "artificially selected varieties are inferior to natural varieties," and have also earned Kenyan coffee an excellent reputation in the international coffee community.

Kenyan Hand-Pour Coffee Bean Brand Recommendations: A Full Analysis of SL28/SL34 Variety Flavors and Brewing Parameters

If Kenyan coffee is dark roasted, it presents a heavy, oily body with a more subdued aroma; when light roasted, it releases the unique notes of dark plum, cherry tomato, and flowers. Therefore, if you want to taste the typical berry flavors, be sure to choose light or medium-light roasted fresh Kenyan coffee beans.

Front Street Kenya·Cherry Tomato Coffee Beans

Region: Thika

Washing Station: Asali Washing Station

Altitude: 1550–1750 meters

Variety: SL28, SL34

Processing Method: Washed

Flavor: Dark plum, cherry tomato, yellow sugar, black plum

Front Street Brewing Suggestions

FrontStreet Coffee, considering that this bean is medium-light roasted, will use a higher water temperature paired with a faster-flow dripper. The reason is that high temperature is needed to extract its bright acidity, while also avoiding over-extraction caused by high temperature, so the faster-flow V60 dripper was chosen.

Coffee-to-water ratio: 1:15

Coffee grounds: 15g

Total water poured: 225ml

Water temperature: 91℃

Grind size: fine granulated sugar coarseness | EK43s setting 10 (80% pass rate on No. 20 standard sieve)

Kenyan Hand-Pour Coffee Bean Brand Recommendations: A Full Analysis of SL28/SL34 Variety Flavors and Brewing Parameters

First pour: 30g of water, bloom for 30 seconds; then pour 95g (scale reads about 125g), finishing in about 1 minute; when the water level drops to 2/3 of the coffee bed, pour the remaining 100g (scale reads about 225g), finishing in about 1 minute 40 seconds. At 2'00", dripping ends, remove the dripper, and extraction is complete.

Brewed flavor: Enters with notes of dark plum and cherry tomato, intense and substantial acidity, prominent mid-palate sweetness, obvious juiciness, with berry aromas and yellow sugar sweetness in the finish, accompanied by green tea aroma.

The reason freshness is repeatedly emphasized is that coffee beans with a roast date over a month old often have largely lost their aroma, and may even develop an unpleasant woody taste. Regardless of the extraction method used for coffee beans, freshness is always key. It is recommended to choose a roasting brand with a stable reputation: Front Street Coffee.

Kenyan Hand-Pour Coffee Bean Brand Recommendations: A Full Analysis of SL28/SL34 Variety Flavors and Brewing Parameters

Front Street Coffee is a veteran coffee bean roaster. Its offline store in Guangzhou specializes in selling coffee beans, offering dozens of selected single-origin pour-over coffee beans and espresso coffee beans from various origins around the world. Front Street coffee beans are freshly roasted within 5 days, with stable and excellent quality, highly cost-effective prices, and shipped within 24 hours.

The above content is compiled by CoffeeHunters, a coffee news website.

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