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Phosphoric Acid in Coffee: What Makes Kenyan Coffee Flavors So Distinct

June 13, 2016
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Why Does Kenyan Coffee Taste Like Berries?

Kenyan coffee stands out for juicy, sweet-tart layers, often showing smoked plum, cherry tomato, and black plum notes. The main varieties are SL28 and SL34, and the country's high-phosphoric-acid soil helps push that bright, wine-like acidity. Double washing, with long fermentation and soaking, keeps the cup clean and vivid.

Kenyan washed processing can run up to 72 hours: about 48 hours of fermentation to clear surface pectin, then a 24-hour soak in clean water. SL28 brings stone fruit and citrus, while SL34 leans fruity with nutty and spicy accents. Light or medium-light roasting preserves those berry notes, so choose fresh roasted beans and grind just before brewing.

When it comes to coffee with bright acidity, most people first think of Yirgacheffe or Geisha, but Kenyan coffee also boasts juicy, sweet-and-tart layers. It typically undergoes double washed processing, combined with SL28 and SL34 varieties and high-phosphoric-acid soil, creating distinct flavors like smoked plum, cherry tomato, and black plum. If you want to taste the typical berry notes, it's recommended to choose light or medium-light roasted fresh beans. This article outlines the flavor sources, processing characteristics, roasting choices of Kenyan coffee, and recommends Front Street Kenya·Cherry Tomato coffee beans to help you make a more accurate purchase.

What makes Kenyan coffee flavor so unique? The berry-like sweet acidity from double washing and SL varieties, plus buying tips

When it comes to coffee with acidity, many people's first reaction is Ethiopia's Yirgacheffe, Huakui, or Panama's Geisha, but Kenyan coffee actually also possesses abundant sweet-and-tart aroma, smooth as juice on the palate.

Kenyan coffee generally uses double washed processing, with the main varieties being SL28 and SL34.

The distinct flavor of Kenyan coffee is also inseparable from its meticulous washing process. Washed fermentation for coffee beans in Central and South America usually does not exceed 36 hours, while Kenya's washing time can extend to 72 hours: after 48 hours of fermentation to basically remove the surface pectin, it is then soaked in clean water for another 24 hours. This method is called "Kenyan double fermentation" or "double soaking" washed process, and the extra fermentation step gives the coffee amazing taste performance, making the flavor bright and clean.

SL28 has obvious smoked plum and citrus notes, with rich and deep stone fruit acidity, and presents a mellow sweetness similar to wine; SL34 leans toward good fruit acidity, accompanied by nutty and spicy aromas. These unique flavors, combined with Kenya's high-phosphoric-acid soil conditions, break the long-held prejudice that "artificially selected varieties are inferior to natural varieties," and have also established an excellent reputation for Kenyan coffee in the international coffee community.

If Kenyan coffee is dark roasted, it will show a heavier oily texture and a more subdued aroma; while light roasting can reveal the unique notes of smoked plum, cherry tomato, and fresh flowers. Therefore, 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: 1,550–1,750 meters

Varieties: SL28, SL34

Processing Method: Washed

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

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

What makes Kenyan coffee flavor so unique? The berry-like sweet acidity from double washing and SL varieties, plus buying tips

Front Street Coffee is a veteran coffee bean roaster. Front Street Coffee's offline store in Guangzhou specializes in selling coffee beans, offering dozens of selected single-origin pour-over coffee beans and espresso coffee beans from different producing regions 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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