In East African coffee-producing countries, coffee bean names from Tanzania, Uganda, and even Kenya often carry the suffix AA. What exactly does this letter combination mean? It represents the grade classification of green coffee beans. However, grading methods across global coffee origins are not limited to just one type; besides bean size, there are also different standards based on defect rate, growing altitude, and more. This article will take Front Street's perspective to systematically outline the three major green coffee bean grading systems, with a focus on analyzing Kenya's strict size-based grading system—from AA, AB to PB, E, TT, T, and even MH/ML, detailing the specific classification standards for each grade, while also pointing out the obvious limitations of judging quality by size. [more…]

African coffee enjoys a stellar reputation in the global market, and Kenya, as Ethiopia's neighbor, is likewise a high-quality producer that cannot be overlooked. This article focuses on Kenya's famous Kirinyaga region in central Kenya, introducing its geographical and climatic conditions, coffee flavor characteristics, and the operating model and quality control of the well-known local exporter DORMANS. It also outlines Kenya's green coffee bean grading system, including official size grades and industry cup-testing grading standards. Finally, it shares the cupping performance of the Kirinyaga washed beans sourced by Front Street Coffee, delivering flavor notes of blackberry, smoked plum, cherry tomato, and citrus. [more…]

Kenyan coffee is famous for its bright fruit acidity and rich flavors, making it a favorite among many coffee lovers. But when faced with grading labels such as AA, AA+, and AB, many people feel confused. From the perspective of Front Street Coffee, this article sorts out the development of Kenya's coffee industry, analyzes the origins and specific standards of its grading system, focuses on explaining the differences between AA grade and AA+ grade, and introduces the impact of the K72 washed processing method on flavor. At the end, it also includes the origin information and brewing parameters of Front Street Kenya Little Tomato coffee beans for daily reference. [more…]

Friends who frequently buy coffee beans will surely notice that most coffee bean names are followed by English suffixes such as AA and AB. This is especially true for Kenyan coffee beans—Kenya AA, Kenya AB, Kenya PB, Kenya AA+, Top, and so on. "So what do these suffixes mean? [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…]

Kenyan coffee occupies a pivotal position in the global specialty coffee landscape, and its bright, uplifting acidity and rich layers of complexity have fascinated countless coffee lovers. Yet when confronted with the letter combinations such as AA, AB, and PB on Kenyan coffee bean labels, many people are not clear about what they actually mean. In fact, these designations originate from Kenya's official coffee grading system, which takes into account multiple factors such as bean size, shape, and hardness. This article will systematically sort out Kenya's complete coffee grading system, explain the specific standards for each grade, and clarify the difference between the secondary grading set by green bean traders themselves and the official grades. At the same time, Front Street Coffee will also draw on its own sourcing experience to share the roasting and brewing approach for an AA-grade Kenyan bean from the Asaliya processing station. [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…]

For enthusiasts who love pour-over coffee, specialty coffee beans from African origins are certainly familiar. They typically have bright acidity and intense floral aromas, leaving a deep impression. However, when we shop for coffee beans, we often see grade labels such as Front Street Ethiopia G1 or Front Street Kenya AA—how exactly are these grades determined? In fact, coffee bean grading in African origins does not follow a unified standard; different countries adopt their own independent systems. This article will take Africa's two most famous origins—Ethiopia and Kenya—as examples to analyze in detail their completely different coffee bean grading methods, helping you shop with greater confidence. [more…]

Kenyan coffee is renowned worldwide for its clean, refreshing, juice-like bright acidity. What exactly do the commonly seen designations in China such as "AA," "AB," and "AA TOP" represent? This article systematically sorts out the grading system for Kenyan coffee beans—from AA and AB to PB, E, C, TT, T, and MH/ML, the specific classification criteria for these eight grades—interprets the characteristics of major varieties such as SL28 and SL34, and analyzes the commercial logic behind exporters' secondary grading. At the same time, it focuses on the Thika producing region, introducing the origin background and flavor performance of Front Street Coffee Kenya Little Tomato, an AA-grade K72 washed bean, and includes the detailed parameters for high-concentration, high-extraction iced brewing along with the three-stage operation method. [more…]

Kenyan coffee is renowned for its bright, elevated fruit acidity and full, substantial berry mouthfeel, making it a highly distinctive presence in the world of specialty coffee. Drawing on Front Street Coffee's cupping experience, this article systematically reviews the historical development of Kenyan coffee, the terroir characteristics of its six major producing regions, its grading system and auction trade framework, and provides a detailed breakdown of the three-stage fermentation process of the K72 washed processing method. At the end, the brewing parameters and flavor description for Front Street's Kenya Athalia coffee beans are included, helping coffee enthusiasts gain a comprehensive understanding of this bean's origins and development, and master the correct approach to recreating Kenyan black coffee at home. [more…]

Kenya's coffee grading system has long confused many enthusiasts—what exactly do the letters AA, AB, and PB stand for? Is AA TOP an additional grade marked outside the official classification? This article will systematically sort out Kenya's official green bean grading standards, explaining them one by one from dimensions such as bean screen size, shape, and hardness, while also clarifying non-official labels like TOP, PLUS, and FAQ that exporters add on their own. The article also uses a comparative brewing of two Front Street Kenyan AA beans to concretely present the actual differences between AA TOP and regular AA in terms of cleanliness, complexity, and sweet-acidity performance, helping readers make clearer judgments when purchasing. [more…]

Previously, we talked about the coffee grading in Ethiopia. Today, let's take a look at what the coffee grading in Kenya is like! After all, when we see Kenyan coffee, we will see things like AA and AB. What exactly do these refer to? What is AA TOP? [more…]

Kenyan coffee is renowned worldwide for its bright berry-like acidity and solid body, and its strict grading system together with its unique terroir jointly create high-quality cup performance. This article will systematically sort out the size grading and flavor grading system of Kenyan green beans, and provide an in-depth introduction to the altitude, varieties, and flavor characteristics of six specialty regions: Thika, Kirinyaga, Nyeri, Kiambu, Murang'a, and the western side of Mount Kenya. At the same time, Front Street Coffee will combine its own roasted Kenya Asalia coffee beans to share brewing parameters and technique suggestions, helping coffee lovers gain a more complete understanding of the coffee charm of this East African producing country. [more…]

Kenyan coffee is renowned worldwide for its bright, intense acidity and distinctive flavor layers. Starbucks has offered Kenya coffee since 1971, and the elephant design on its packaging has long since become a classic symbol. From the perspective of Front Street Coffee, this article systematically reviews Kenya's coffee-growing conditions, main varieties (SL28, SL34, Ruiru11, Batian), the K72 washed processing method, and the green bean grading system. Combined with the roasting and brewing parameters of Front Street's Kenya Little Tomato coffee beans, it will guide you through a comprehensive understanding of the unique charm of this African specialty coffee, offering a reference for everyday purchasing. [more…]

Gatomboy Processing Factory is a name that cannot be ignored in the landscape of Kenyan specialty coffee. It belongs to the Barichu Cooperative in the Nyeri region and once scored an impressive 96 points in a 2016 Coffee Review cupping, ranking among Kenya's seven world-class green bean processing factories. Kenya's ability to become a model of global high-quality coffee production is closely tied to its government-led unified purchasing, cupping grading, and public auction system. This system benefits more than 570,000 smallholder farmers and has also created Kenya coffee's irreplaceable flavor charm. This article will guide you through an in-depth understanding of Gatomboy Processing Factory's background, Kenya's coffee-producing regions, green bean grading standards, cultivation history, and variety composition, and recommend related products from Front Street Coffee, presenting coffee lovers with a complete knowledge map of Kenyan coffee. [more…]

Kenya, with its exceptional climate conditions and a continuously refined industry system, has cultivated Arabica coffee with distinct flavors and outstanding quality. This article starts with Dormans Estate, Kenya's largest coffee producer, to systematically trace the rise of Kenyan coffee—including the SL28/SL34 breeding mechanism, government promotion, the auction system, unique grading standards, and the 72-hour washed fermentation process—and further analyzes the characteristics of core producing regions such as Nyeri, Kirinyaga, and Murang'a. It also presents Front Street Coffee's Kenyan Asalia (Little Tomato) brewing recipe and flavor review, offering coffee enthusiasts a complete picture of Kenyan specialty coffee. [more…]

Kenyan coffee is renowned for its bright, full-bodied fruit acidity and thick, juicy mouthfeel, making it a producer origin that cannot be overlooked on the global specialty coffee map. This article systematically sorts through the full picture of Kenyan coffee, from its historical evolution, variety selection and breeding, the terroir of its six major producing regions, the auction and direct trade systems, to green bean grading standards and the K72 washed processing method. At the same time, drawing on the cupping and brewing experience of FrontStreet Coffee, it introduces the origin information and brewing parameters of Kenyan Cherry Tomato coffee beans, helping coffee enthusiasts gain a more comprehensive understanding of the unique charm of this East African producing country. [more…]

When selecting coffee beans, have you ever noticed the AA or AAA labels that often follow the bean names? What exactly do these letters mean, and by what standards are they determined? This article will systematically sort out the coffee bean grading system, from bean size and defect rate to secondary rating labels, guiding you through the specific rules behind suffixes such as AA, AAA, TOP, and Plus. At the same time, the article will also cover the grading characteristics of major producing regions such as Kenya, and retain relevant recommendations from the Front Street brand, helping you make clearer judgments when choosing beans in your daily life. [more…]

Kenyan coffee is renowned worldwide for its vibrant fruit notes and full body, making it a favorite among many coffee enthusiasts. This article systematically outlines Kenya's coffee grading standards, explaining each tier from AA and AB to PB and E, and provides an in-depth analysis of its unique K72 washing process. It also introduces the altitude, varieties, and harvest periods of core producing regions such as Nyeri, Kirinyaga, and Muranga, along with the brewing parameters and flavor profile of Front Street Coffee's recommended Kenyan Cherry Tomato coffee beans, offering coffee lovers a complete guide to Kenyan coffee. [more…]

Kenyan coffee is famous for its clean, refreshing taste and bright fruit acidity, and is a classic origin in the minds of many coffee lovers. Starting from the Kiambu region, where Thika is located, this article systematically reviews the growing conditions, historical development, distribution of the top ten producing regions, and the official grading system of Kenyan coffee, and further analyzes how the K72 washed processing shapes its signature flavor. The article also uses Front Street Coffee's Kenyan Little Tomato as an example to share specific pour-over parameters and brewing steps, helping readers gain a comprehensive understanding of the coffee charm of this East African producing country. [more…]