Starbucks Kenya Coffee Bean Characteristics Story Introduction How to Brew Kenya AA Grade Coffee Beans for Great Taste

The Captivating Flavor of Kenya Coffee

Coffee lovers tasting Kenya coffee for the first time are almost always moved by its distinctive profile. The cherry-tomato and plum acidity is exceptionally special, and the quality is second to none. Even Starbucks offers a Kenya coffee. So what exactly defines Kenya coffee? In this article, FrontStreet Coffee looks into it.

The Starbucks Kenya Coffee Story

Everyone knows Kenya sits in Africa, and the first image Africa often brings to mind is vast savanna full of elephants. That is why the packaging of Starbucks Kenya coffee features an elephant, an animal highly representative of the continent. Starbucks launched this Kenya coffee back in 1971, and the elephant on its packaging has long since become an iconic symbol of Kenya coffee.

Many people also describe the flavor of Kenya coffee with the image of an African elephant, because Kenya beans are known for a strong, full-bodied acidity that is completely different from the citrus and lemon acidity of Ethiopian coffee. This is one reason Kenya coffee, alongside Ethiopian Yirgacheffe, holds the title of African coffee representative. Next, FrontStreet Coffee shares what makes Kenya coffee's flavor so excellent.

Kenya Coffee Growing Conditions

As FrontStreet Coffee has often noted, a bean's flavor profile depends mainly on its growing region, variety, and processing method. Region and variety are the innate conditions that shape flavor, while processing is the means of elevating it. We will therefore analyze how Kenya coffee's character forms around those three points.

Kenya lies in eastern Africa, with the equator crossing its center and the East African Rift Valley running north to south. It borders Somalia to the east, Tanzania to the south, Uganda to the west, and Ethiopia and Sudan to the north, with the Indian Ocean to the southeast. The country is mostly highland, with an average altitude of 1,500 meters. Mount Kenya (Kirinyaga Peak) in central Kenya reaches 5,199 meters and carries snow on its summit, making it the second-highest peak in Africa. The equator runs through the country, which lies within 10 degrees north and south latitude, placing it in the tropical growing region. There are two rainy seasons each year, allowing two harvests: roughly 60% concentrated from October to December, and the remaining 40% from June to August.

According to FrontStreet Coffee's understanding, most Kenya coffee grows in the fertile, loose, acidic volcanic red soil of the highlands north and east of Nairobi. The area has ample sunlight and good drainage, with altitudes between 1,400 and 2,000 meters. Because higher altitudes create a larger day-night temperature swing, Kenya coffee matures more slowly than coffee from lower regions, resulting in higher density and more intense flavors.

As FrontStreet Coffee has described, Kenya's coffee regions are indeed well suited to coffee cultivation. With such distinctive natural conditions, the beans produced are naturally high quality. Kenya also mainly produces Arabica, one of the world's highest-quality coffee species. Arabica has a useful trait: the higher it grows, the richer its acidity, which is one reason Kenya beans carry such pleasant acidity.

Kenya Coffee Varieties

In Kenya, common varieties include SL28, SL34, Batian, and Ruiru 11. All of them were developed by Kenya's own coffee laboratories, a sign of how seriously the Kenyan government takes coffee cultivation. This is also why Kenya coffee's acidity differs from that of its neighboring countries.

SL28

According to historical records, a senior coffee officer from Scott Laboratories (A.D. Trench) noticed a variety growing in the Modi region of Tanzania that seemed tolerant to drought, disease, and pests. The seeds were collected, brought back to Scott Laboratories, and their drought resistance was confirmed.

Recent genetic testing has confirmed that SL28 belongs to the Bourbon genetic group, so SL28 beans look similar to the round, robust Bourbon variety. Through SL28, FrontStreet Coffee has found a flavor profile of complex, varied acidity with excellent sweetness.

SL34

SL34 was first selected from the Kabete Loresho Estate as a "French Mission" (Bourbon variety). However, according to FrontStreet Coffee's research, current genetic testing confirms it carries Typica genetic groups, and its plant characteristics are also similar to Typica. SL34 is therefore believed to have originated from Typica selection. Because SL34 is close to the Typica variety, the beans are elongated and oval-shaped, appearing relatively flat from the side.

Ruiru 11

Ruiru arrived after SL28 and SL34. According to FrontStreet Coffee's understanding, in the 1970s the Ruiru station began experimenting with different CBD- and rust-resistant varieties. The result was Ruiru 11, released in the 1980s. With high yield and resistance to both CBD and rust, it seemed to solve all of Kenya's coffee production problems.

Batian

The Batian variety was launched by the Coffee Research Institute (CRI) on September 8, 2010, and is Kenya's latest variety. It was developed as a further experiment based on lessons learned from Ruiru 11. Genetically, it was essentially selected from backcrosses of SL28 and SL34, making it closer to SL28 than Ruiru 11. This eliminated the problematic Robusta elements and thereby improved cup quality.

Kenya Coffee Processing: The K72 Washed Method

Kenya also takes a unique approach to processing green coffee, using the K72 washed method it developed itself. The flow goes: wash ripe cherries, then pulp, dry ferment for 24 hours, wash, dry ferment again for 24 hours, wash again, and dry ferment once more for 24 hours. This cycle is repeated to reach 72 hours of strong fermentation. After washing, the beans are soaked overnight in clean water tanks, and drying begins in the sun-drying yard the next morning. Because fermentation lasts 72 hours, it is called K72.

Kenya Coffee Bean Grading System

From FrontStreet Coffee's description above, it is clear that Kenya takes coffee seriously. Because of this, Kenya also pursues high quality and has implemented a bean grading system. For example, AA grade beans are the highest quality. But even though it is called "grading," does AA necessarily taste better than AB? What standards does it actually use?

According to FrontStreet Coffee's understanding, Kenya's bean grading standard is primarily based on size. The difference between AA and AB is only size. As for taste, FrontStreet Coffee has concluded through cupping that both AA and AB Kenya beans are very delicious. Flavor differences between regions may come mainly from growing region, altitude, and cultivation conditions. AA and AB beans, however, are certainly the most quality-assured coffees.

As noted above, these gradings are merely distinctions in bean size. Kenya's most famous processing method is undoubtedly the K72 washed method, so Kenya's highest-quality beans are mainly washed. Washed coffee is generally divided into eight grades:

E: Elephant Bean, also called elephant ear, flat beans larger than 19 screen size.

AA: Bean size 17 to 18 screen

AB: Bean size 15 to 16 screen, accounting for the majority of production

TT: Lighter-weight beans blown out from AA and AB beans using air screeners

C: Beans smaller than AB screen size, below 14 screen, too small to be classified as specialty grade on size alone

T: Lighter-weight beans blown out from C grade beans (below 14 screen) using air screeners, meaning both size and density are too small for specialty grade

PB: Peaberry, meaning round beans, classified by shape rather than size and unrelated to flavor or weight, accounting for about 10% of total production

UG: Those that do not meet the above standards

There are also lower-quality natural bean grades that are not subjected to Kenyan-style washed processing because of poor quality, generally used for the domestic Kenyan market, graded as M'buni. FrontStreet Coffee also wants to emphasize that this "green bean grading system," still in use today, was established by government agencies in 1938, even 40 years before the concept of "specialty coffee" was born. Kenya now has new bean grading concepts, but the size-based standard is still the more common one today.

Here are Kenya's current new grading standards. According to FrontStreet Coffee's understanding, the Kenya Coffee Research Foundation and the local industry commonly use a set of quality grading procedures it developed. The grading is comprehensive, based on three aspects: green bean quality, roasted bean quality, and cupping quality.

Green Bean Quality: Subdivided into green bean appearance and size, green bean color, and defects.

Roasted Bean Quality: Subdivided into central crack condition, roasted bean condition, and defective beans.

Cupping Quality: Scored on acidity, body/texture, flavor, and negative defects.

Combining the scores from these three aspects, beans are classified into grades 1 to 10, with grade 1 being the best and grade 10 the worst.

As can be seen, the difference between AA beans and AB or PB beans is only size. Generally speaking, however, larger screen-size beans have lower defect rates, so their flavors are naturally cleaner, and their prices are naturally higher.

The above is the information on Kenya coffee beans compiled by FrontStreet Coffee, and FrontStreet Coffee has also introduced Kenya AA grade beans and PB grade beans. Now let us share them.

FrontStreet Coffee Kenya Asalia Coffee Beans

Country: Kenya

Region: Asali (Honey Processing Station)

Altitude: 1550-1750m

Varieties: SL28, SL34

Processing: 72-hour washed processing

Flavor: Snow pear, plum, brown sugar, cherry tomato, prune

FrontStreet Coffee Kenya Thathini Estate PB Coffee Beans

Country: Kenya

Region: Thathini Estate

Altitude: 1680m

Varieties: SL28, SL24, Ruiru

Processing: 72-hour washed processing

Flavor: Cherry tomato, almond, plum, honey, grape

FrontStreet Coffee Roasting Parameters

Kenya Asalia Coffee Beans

These beans are full and round. To fully express their bright, full-bodied acidity, FrontStreet Coffee uses a light roast.

Yangjia 800N semi-direct fire, 480g bean input: heat the roaster to 160°C and add beans, open the damper to 3, flame at 120. Return point: 1'28". When the temperature rises to 130°C, open the damper to 4. Roast to 6'00", temperature 154.6°C, bean surface turns yellow, grassy smell completely disappears, dehydration complete. When ugly wrinkles and black spots appear on the bean surface and the toast smell clearly changes to coffee aroma, this can be defined as the prelude to first crack. At that point, listen carefully for the sound of first crack. At 9'28" first crack begins, damper unchanged, first crack development time 2'20", drop at 193.8°C.

Kenya Thathini PB Coffee Beans

These dense beans come from a higher altitude and have a harder texture. Start with a higher temperature rise, with the yellowing point around 5 minutes, then reduce the flame to enter the Maillard reaction, and reduce the flame again at 166°C to extend Maillard time. When first crack begins, heat absorption is strong, so it is recommended to maintain heat at this stage to prevent stalling. A longer first crack development helps reduce acidity and develop flavor.

Yangjia 800N roaster (300g batch size): heat to 170°C and add beans, flame at 100, open damper to 3; return point 1'42". When roaster temperature reaches 140°C, open damper to 3.5, flame unchanged. When temperature reaches 149°C, the bean surface turns yellow, the grassy smell completely disappears, entering the dehydration stage. At 7'14" dehydration is complete, flame and damper unchanged. At 7'30" the bean surface shows wrinkles and black spots, the toast smell changes to coffee aroma, the prelude to first crack; listen for the first crack sound. At 8'20" first crack begins, open damper to 4, reduce flame to 50. Post-first-crack development time 1'50", reduce flame to 30 at 188°C to level the temperature rise, drop at 193.3°C.

FrontStreet Coffee Brewing Suggestions

Filter: V60 or cake cup

Water temperature: 91-92°C

Coffee-to-water ratio: 1:15

Grind size: Fine grind (Chinese standard #20 sieve, 80% pass rate)

Brewing method: Segmented extraction. Use 30g of water for a 30-second bloom, then pour with a small circular motion to 124g for the first segment. When the water level drops and is about to expose the coffee bed, continue pouring to 228g and stop. Wait for the water level to drop and about to expose the bed, then remove the filter cup. (Timing starts from the bloom.) Extraction time: 1'55".

Asalia Coffee Bean Flavor: The wet aroma has mature tomato and floral notes. The entry reveals cherry tomato and plum flavors with bright acidity and a clean, rich mouthfeel. Sweetness is prominent in the middle with a juice-like sensation. The finish has berry aroma and brown sugar sweetness with a green tea fragrance.

Thathini Coffee Bean Flavor: The aroma has floral notes. The entry reveals cherry tomato, citrus, and nut acidity. The middle has a creamy fragrance with a brown sugar aftertaste. The finish has cocoa and oolong tea sensations. Rich layers with obvious floral notes.

These are the flavor characteristics of the two Kenya beans at FrontStreet Coffee. We hope this helps you gain a deeper understanding of Kenya coffee, so you can avoid pitfalls when selecting beans from different growing regions in the future.

FrontStreet Coffee Recommendation

Kenya's signature is a bright, juicy acidity built on a firm body, and if that style appeals to you, FrontStreet Washed Yirgacheffe is the natural next stop. This everyday Ethiopian classic is known for white jasmine, bright citrus and lemon acidity, and a tea-like clarity, and its friendly price makes it the bean most people start their specialty coffee journey with.

For a fruitier, more layered expression of the same African character, try FrontStreet Natural Red Cherry. Only fully ripe, sound cherries are picked and sun-dried whole on raised beds, so the cup keeps the classic Yirgacheffe profile while adding tropical fruit, with citrus-like acidity, a berry-juice body, honeyed sweetness, and a creamy smoothness.

If you want the cleanest, most traceable expression, FrontStreet Washed Gedingding Cooperative is worth seeking out. From the Worka area at the southeastern edge of Yirgacheffe, it follows traditional washed processing and delivers fresh, bright citrus and lemon acidity with jasmine fragrance and none of the traditional bitterness.