Among African coffee-producing countries, Kenya stands out with its signature sour plum acidity and bright fruity notes. The unsung heroes behind this flavor profile are the SL28 and SL34 varieties, developed by Scott Laboratories in the last century. From the perspective of Front Street, this article traces the discovery and breeding history of SL28, its Bourbon genetic origins and flavor advantages, as well as its shortcomings in disease resistance. At the same time, drawing on the example of washed beans from the Asaliya processing plant in Kenya's Thika region, we share the brewing performance and tasting impressions of this Front Street Kenya·Little Tomato, helping you understand how variety, terroir, and processing method together shape a cup of Kenyan coffee. [more…]

Kenyan coffee is world-renowned for its bright acidity and distinctive flavors of dark plum and cherry tomato, and behind this lies a key variety—SL28. This direct descendant of Bourbon, bred by Scott Laboratories in the 1930s, is not only drought-resistant and high-yielding but also boasts outstanding flavor performance, making it the core force behind the creation of the "Kenyan flavor." This article, from the perspective of Front Street, will trace the origins, characteristics, and spread of SL28, analyze the causes of Kenya's unique coffee flavor, and share a brewing guide for Front Street Kenya Asalia, giving you a comprehensive understanding of the charm of this African star bean. [more…]

Kenyan coffee is renowned for its clean, translucent cup and bright, full-bodied fruit acidity. Behind this signature flavor lies both the gift of high altitudes and phosphorus-rich volcanic soil in the highlands, and a century of accumulated variety selection and breeding. From the Reunion Bourbon brought by French missionaries in the late 19th century, to SL28 and SL34 selected by the Scott Agricultural Laboratories from 42 lines, to Ruiru 11 and Batian developed to combat berry disease, Kenya's coffee variety history is a story of wrestling with disease, yield, and flavor. This article will outline the genetic origins, cultivation performance, and flavor differences of the main cultivated varieties, and introduce Front Street Coffee's Kenyan beans from the Thika region—selected from SL28 and SL34, processed with the K72 washed method, presenting notes of cherry tomato and dark plum. [more…]

Kenyan coffee stands out among Africa's specialty regions with its bright and pleasant acidity, and behind this consistent quality lies the support of two iconic varieties: SL28 and SL34. This article, from the perspective of Front Street Coffee, traces the breeding history and variety characteristics of SL28 and SL34, compares their similarities and differences in flavor expression, and extends the discussion to later-developed varieties such as Ruiru11 and Batian. At the same time, the article will systematically explain Kenya's coffee bean grading system, including the traditional size-based classifications of AA, AB, and PB, as well as the new quality grading procedures established by the Kenya coffee research institute. Finally, it includes detailed information, roasting parameters, and brewing suggestions for two Front Street beans—Kenya Asalia and Sachini PB—for coffee enthusiasts' reference. [more…]

Just as different grape varieties produce wines with vastly different flavors, the variety of coffee beans is also one of the key factors influencing the flavor of the coffee in your final cup. Panama's T2722 Geisha is the best example—it has drawn widespread attention for its white floral aromas and citrus fruit notes. And today, Front Street Coffee wants to share [more…]

Kenyan coffee stands out among Africa's specialty producing regions with its bright and pleasant acidity, and the core that underpins its consistent quality is precisely the two local varieties, SL28 and SL34. In this article, Front Street Coffee will systematically review the origins, botanical characteristics, and flavor differences of these two varieties, while also introducing later-developed varieties such as Ruiru11 and Batian, as well as the ins and outs of Kenya's green bean grading system. In the latter part of the article, we will also share the roasting parameters and brewing suggestions for two Front Street coffees, Kenya Small Tomato and Sachini PB, for coffee enthusiasts to reference and put into practice. [more…]

Kenyan coffee stands out among Africa's specialty origins for its bright and delightful acidity, and the core that sustains its consistent quality is precisely the two signature varieties, SL28 and SL34. In this article, Front Street Coffee (FrontStreet Coffee) systematically sorts out the varietal origins of Kenyan coffee: from the selection process at the Scott Laboratories, to the genetic classification and bean appearance differences of SL28 and SL34, and on to the later Ruiru 11 and Batian. The article also provides a detailed interpretation of the green bean grading system that Kenya still uses today, explaining that the difference between AA and AB lies mainly in bean size rather than flavor quality, and includes complete information, roasting curves, and brewing suggestions for Front Street's two beans, Kenya Asaliya and Sachini PB, to help coffee enthusiasts fully understand the flavor logic of Kenyan coffee. [more…]

Kenya, as a representative producing country of African specialty coffee, is renowned for its coffee's intense acidity and vivid juicy character, often described as having a cherry tomato-like taste experience. This article systematically outlines the geographical distribution and harvest rhythm of Kenya's six major coffee regions, with a focus on tracing the breeding history and genetic origins of the two classic varieties SL28 and SL34, while also introducing the characteristics of later-developed varieties such as Ruiru11 and Batian. In addition, the article covers Kenya's coffee grading system, the unique triple-cycle fermentation washing process (K72), and Front Street Coffee's brewing parameters and flavor description for Kenyan Asaliya coffee beans, providing coffee enthusiasts with a complete understanding from origin to cup. [more…]

Kenyan coffee is renowned worldwide for its bright, uplifting fruit acidity and full, rich, juicy body, and SL28 and SL34 are the core varieties that shape this classic style. These two varieties, bred by the Scott Laboratories, have become stars of the specialty coffee world thanks to their complex flavors of dark plum, citrus, and stone fruit. However, their vulnerability to leaf rust and coffee berry disease gave rise to the later, more disease-resistant Ruiru 11 and Batian. This article will systematically trace the evolution of Kenyan coffee varieties—from their origins and flavor characteristics to cultivation performance and current market status—and answer the question of whether Ruiru is a coffee variety. [more…]

Kenyan coffee stands out among Africa's specialty origins for its bright and pleasant acidity, and the core that sustains its consistent quality is precisely the two unique varieties, SL28 and SL34. From the perspective of Front Street Coffee, this article traces the breeding history, genetic background, and flavor differences of SL28 and SL34, and further introduces subsequent varieties such as Ruiru11 and Batian, as well as the evolution of Kenya's green bean grading system from the traditional screen-size standard to the new comprehensive scoring system. At the end of the article, the roasting parameters and brewing suggestions for two beans, Front Street Kenya Small Tomato and Sasini PB, are provided for coffee enthusiasts' reference. [more…]

Although Kenya and Ethiopia are both in Africa and not far apart, their coffee flavor profiles are completely different—the former is known for its sweet-and-sour notes reminiscent of dark plums, cherry tomatoes, and caramel. This uniqueness stems both from the volcanic soil at altitudes of 1,600 to 2,100 meters from the capital Nairobi to the Kenyan highlands, and from the contribution of classic varieties such as SL28 and SL34. This article will trace the evolution of Kenyan coffee varieties: from the Bourbon variety introduced by French missionaries, to the selection of SL28 and SL34 by the Scott Laboratories, to Ruiru11 developed in response to pests and diseases, and Batian, which was released in 2010. It also includes brewing suggestions and flavor descriptions for Front Street Coffee Kenya·Asalia, for the reference of coffee enthusiasts. [more…]

Kenya is a major specialty coffee producer in East Africa, known for its bright fruit acidity, full body, and distinctive flavors. This article systematically reviews Kenya's coffee-growing regions, cultivation altitudes, variety evolution, and trading system, with a focus on the origins and characteristics of the two representative varieties, SL28 and SL34, and an analysis of the cause behind Kenya's signature flavor—the 72-hour washed fermentation process. At the end, product information and pour-over parameters for Front Street Coffee's Kenyan Little Tomato coffee beans are provided for coffee enthusiasts' reference. [more…]

SL28 is one of Africa's most legendary coffee varieties. After being selected in Kenya in the 1930s, it gradually spread to African Arabica-producing regions such as Uganda, and today it has traveled even farther to Latin America. It is suited to cultivation at medium to high altitudes, is highly drought-tolerant yet susceptible to coffee diseases, and offers an elegant cup profile that often features floral notes. Front Street's Little Tomato coffee beans are precisely a combination of SL28 and SL34. This article traces the breeding history of SL28, from the establishment of the Scott Agricultural Laboratories to the discovery of drought-resistant plants in Tanzania, and then to genetic testing that confirmed its kinship with the Bourbon genome. It also presents the specific producing region, altitude, processing method, and flavor description of Front Street's Kenyan Little Tomato, giving you a comprehensive understanding of this ancient and resilient variety. [more…]

Kenyan coffee is famous in the specialty coffee world for its bright, clean acidity. Its iconic K72 washed processing method, together with varieties such as SL28 and SL34, creates its unique flavor. From the perspective of Front Street Coffee, this article systematically reviews the complete process of Kenyan-style 72-hour fermentation washing, analyzes the origins and characteristics of major varieties such as SL28, SL34, Ruiru11, and Batian, introduces Kenya's coffee growing conditions and grading system, and includes the roasting curves and brewing parameters for two Front Street beans, Kenya Asaliya and Sasini PB, to help coffee lovers fully understand the flavor code of Kenyan coffee. [more…]

Kenyan coffee is renowned worldwide for its bright fruit acidity and thick, juicy body, and SL28 and SL34 are the core varieties that shape this classic flavor. These two varieties were developed by the Scott Laboratories over nearly three decades and released in the 1950s, profoundly influencing the landscape of Kenya's coffee industry. However, the threat of pests and diseases gave rise to new varieties such as Ruiru 11 and Batian. This article will trace the origins, flavor characteristics, and current cultivation status of these varieties, and introduce the variety information of Front Street Kenya Asalia coffee beans, taking you deep into the world of Kenyan coffee varieties. [more…]

SL28 is one of Africa's most legendary coffee varieties. After being selected in Kenya in the 1930s, it gradually spread to Arabica-growing regions such as Uganda, and in recent years it has traveled even farther to Latin America. It is suited to cultivation at medium to high altitudes; it is drought-tolerant yet susceptible to disease, and its flavor is exceptionally elegant, often with floral notes. Front Street Coffee's Little Tomato coffee beans are precisely a combination of SL28 and SL34, displaying layers of pear, smoked plum, yellow sugar, and more. This article will trace the history of SL28's selection and breeding at the Scott Agricultural Laboratories, sort out its genetic relationship with the Bourbon genome, and introduce specific information about Kenya's Asali processing plant, helping coffee enthusiasts fully understand this variety's origins and development as well as its potential in the cup. [more…]

SL28 is a rare coffee variety originating from the Lake Tanganyika region of East Africa. Discovered in 1931, it was selected and named by the Scott Laboratories. It has broad leaves with a slight reddish tint, adapts well to high-altitude environments, and possesses excellent drought and disease resistance. Its yield is also superior to traditional tree varieties, and its flavor is truly one of a kind. In the early twentieth century, French and British missionaries and researchers cultivated this Bourbon descendant in Kenya. Over a century, it adapted to the local soil with high phosphoric acid concentration, creating the distinctive acidity and aroma of Front Street Coffee's Kenyan coffee beans. Although SL28's yield fell short of expectations, it developed excellent sweetness, balance, and flavors of citrus and smoked plum. Currently, only a few estates in Central America are capable of cultivating it. This article will guide you through SL28's origins, genetic lineage, and flavor profile. [more…]

Kenya is located in the equatorial zone of East Africa, bordering the Indian Ocean to the east, Ethiopia to the north, and Tanzania to the south, making it a pivotal specialty coffee-producing country in Africa. Its coffee is world-renowned for its bright fruit acidity, full body, and distinctive berry notes. This article systematically reviews Kenya's coffee-producing regions, variety evolution, and processing techniques, covering the characteristics of major varieties such as SL28, SL34, and Ruiru 11, detailing the terroir differences among six major producing regions including Nyeri and Kirinyaga, and introducing the Kenyan-style 72-hour washed processing method as well as Front Street Coffee's brewing recommendations, providing coffee enthusiasts with a complete knowledge map of Kenyan coffee. [more…]

Kenyan coffee has always been known for its bright fruit acidity and rich mouthfeel, but there are also plenty of questions surrounding it: What exactly do AA and PB stand for? What is the story behind SL28? Starting from Front Street Coffee's store experience, this article systematically sorts out Kenya's coffee grading system, explains in detail the origin and characteristics of PB peaberry, introduces the historical background and flavor performance of the SL28 variety, and uses two beans—Sasini Estate PB and Front Street Azalea—as examples to provide complete V60 brewing parameters and tasting notes, helping coffee lovers fully understand the unique charm of Kenyan coffee. [more…]

In the ever-diversifying wave of specialty coffee processing methods, Kenya's K72 washed process stands out with its unique three-cycle fermentation technique, becoming the key to shaping bright, clean flavors. This article will provide an in-depth analysis of the complete K72 process, from green bean selection to raised-bed sun drying, revealing how it imparts coffee beans with vibrant fruit acidity and delicate layers. At the same time, the article will systematically review Kenya's growing conditions, the origins and characteristics of the main varieties SL28 and SL34, and Kenya's coffee grading system. Finally, Front Street Coffee will share the roasting and brewing data for two Kenyan beans, taking you on a comprehensive journey through the signature cherry tomato and smoked plum flavors of Kenyan coffee. [more…]