Colombia, as a major global producer of specialty coffee, has a strict and standardized green bean grading system. From the commonly seen Excelso marking on jute bags, to different grades such as UGQ, EP, and Supremo, to defect scoring and screen size sorting, every step affects the final quality of the coffee beans. This article will systematically outline Colombia's green coffee bean grading system, explain in detail the specific requirements and classification standards of the Excelso grade, and, combined with the brewing and flavor performance of Front Street Coffee's Huila daily drinker beans, guide you through a comprehensive understanding of the quality logic behind Colombian coffee. [more…]

The grading of green coffee beans not only affects trading prices but also, to a certain extent, reflects flavor tendencies. For this reason, each producing country establishes its own grading rules based on local conditions. This article focuses on Colombia's green bean grading system, with emphasis on explaining the meaning of the Excelso export grade, the defect scoring method, and the specific standards based on screen size classification, while also introducing the differences among the three common export grades: UGQ, EP, and Supremo. At the same time, Front Street Coffee will share the flavor characteristics and brewing suggestions for Supremo-grade coffee beans from Colombia's Huila region, helping coffee enthusiasts extend their knowledge of grading into the actual drinking experience. [more…]

Beyond varietal differences, coffee beans have multiple classification dimensions, which gives rise to many alternative names. This article begins with the appearance-based classification of flat beans and round beans, and focuses on answering the question coffee enthusiasts often ask: what exactly does "hard bean" mean? It originates from a grading system in Central American growing regions that classifies bean hardness by cultivation altitude—the higher the altitude, the greater the density and the higher the grade. The article also shares how to judge bean hardness by feel, the roasting and brewing strategies corresponding to coffee beans of different hardness, and uses actual brewing parameters as examples to illustrate the differences in extraction between high-hardness light-roasted beans and low-hardness dark-roasted beans, helping readers find a suitable brewing approach. [more…]

Although Tanzanian coffee is not as famous as that of its neighbor Kenya, it has earned the reputation of the "gentleman of coffee" with its full body and soft acidity, and the Kilimanjaro region is a representative of specialty African beans. This article systematically sorts out the historical origins and grading system of Tanzanian coffee, explains in detail the specific particle size classification standards of AA, AB, PB, and C grades, and, starting from cupping and pour-over experience, presents the complete quality control process of Front Street Kilimanjaro AA washed beans from baking curve confirmation to flavor delivery, helping you understand the causes of citrus and berry notes and the honey-tea-like sweet aftertaste, and evaluate the price positioning and purchasing logic of different grades. [more…]

As an agricultural product, coffee beans' quality is influenced by many factors, so a grading system is needed to standardize quality and provide a purchasing reference for green bean buyers. Grading standards vary across producing regions: some are based on altitude, others on bean size, while Ethiopia uses a combination of defect rate and cupping. This article will provide an in-depth analysis of the meaning of the G1 and G2 grades for Ethiopian Sidamo coffee beans, explore the evolution of its grading system, and, through a comparison of Yirgacheffe G1 and G2—from appearance and roasting to cupping flavor—reveal the practical impact of grade differences on coffee quality. At the same time, Front Street Coffee's brewing recommendations will also provide you with useful reference. [more…]

Baristas often mention hard beans and soft beans, but these two terms actually do not refer to whether the beans feel hard or soft to the touch—they refer to the density of the coffee beans. The concept of hard beans comes from the Central American coffee grading system, which uses altitude as the standard—the higher the altitude, the lower the growing temperature, the slower the coffee fruit matures, the more flavor compounds it accumulates, and the greater the bean density becomes. Panama, Costa Rica, Guatemala, and other countries generally adopt this logic, while Ethiopia, because its overall altitude is high, is almost entirely made up of extremely hard beans and does not need further subdivision by altitude. Of course, although high-density beans are delicious, they also bring more challenges during grinding and brewing. [more…]

Costa Rican coffee is world-renowned for its balanced, clean, and mild classic style. Its acidity is bright and lively, often with citrus and berry notes, and an elegant coffee floral aroma can still be detected in the aftertaste, giving off an overall serene Latin countryside vibe. Unlike many producing regions, Costa Rica's grading method does not rely on bean size or defect rate, but directly uses the altitude at which the coffee farm is located as the basis for classification, with a total of seven grades. This article will systematically sort out the specific contents of this grading system, introduce the three most common grades in the current specialty coffee market—SHB, HB, and SH—and, combined with the typical flavor performance of the Tarrazú producing region, recommend Front Street Costa Rica Mozart coffee beans, taking you to gain an in-depth understanding of this coffee country that, although small in output, enjoys an outstanding reputation. [more…]

Yirgacheffe is one of Ethiopia's most iconic specialty coffee regions, and the Aricha G1 washed lot stands out as one of its finest examples. This article begins with green bean processing methods and grade classification, systematically outlining the grading logic under SCAA standards for the two major categories of washed and natural, and focusing on the origin background, processing station information, and Project Origin's sourcing philosophy behind Aricha G1. We will also share a proven pour-over brewing recipe, along with Front Street Coffee's product parameters, to help coffee enthusiasts fully understand the flavor origins and brewing key points of this bean. [more…]

Colombia is the world's second-largest coffee-producing country and the largest exporter of washed Arabica beans. Its top Supremo grade represents high-quality coffee with plump beans and exceptional balance. This article provides a comprehensive analysis of the unique appeal of Colombian Supremo coffee beans from multiple angles, including grade classification, regional characteristics, and flavor profile, guiding you through this specialty coffee hailed as "green gold," as well as the core position of the Medellín region in Colombia's coffee landscape. [more…]

Blue Mountain coffee was once the pinnacle of the coffee world, and it still draws many enthusiasts on special pilgrimages to this day. As one of the few shops that sells authentic Blue Mountain coffee in person, Front Street Coffee regularly welcomes guests who come to check it out after hearing about it. Yet many people still know surprisingly little about Blue Mountain coffee. This article will take you deeper into the authentic taste profile of Blue Mountain coffee, how it differs from ordinary coffee, the classification of Blue Mountain coffee, and how Front Street uses pour-over to bring out the rich, full-bodied flavor of Blue Mountain No. 1. At the same time, we will also clarify the common chaos of fake Blue Mountain coffee on the market, and introduce the origin certification, grading standards, and brewing details of Jamaican Blue Mountain coffee. [more…]

Yirgacheffe, as one of the most representative coffee regions in Ethiopia, offers coffee beans with strikingly different flavor profiles depending on whether they are washed or natural processed. The washed method removes pectin through fermentation and rinsing, resulting in clean, bright acidity and soaring aromatics; the natural method keeps the whole fruit for a long, slow drying period, delivering intense fruity notes and a rich, syrupy body. This article systematically breaks down the core differences between these two processing methods from multiple angles—processing flow, flavor characteristics, and grading—and introduces the unique charm of Front Street G1 Yirgacheffe, helping coffee lovers gain a deeper understanding of Yirgacheffe's flavor code. [more…]

Yunnan is a major coffee-producing region in China, and its coffee bean grading system is crucial for quality control. What tier does Special Grade 2 occupy? This article breaks down the specific requirements for Yunnan coffee beans at Special Grade 2 one by one, from appearance and sensory attributes, physical indicators, and chemical indicators to hygiene standards, including hard data such as a granule size of 7.1 mm, broken beans not exceeding 10%, and moisture content ≤12.5%. Understanding these standards not only helps you judge coffee bean quality but also helps you make wiser choices when purchasing. Front Street Coffee will also share related product information in the article, making it suitable for coffee enthusiasts who want to gain a deeper understanding of the grading logic for Yunnan beans. [more…]

Jamaican Blue Mountain coffee is globally recognized as one of the top-tier coffees, but many people are not clear that its grading system is actually different from the commonly seen Grade 1. Front Street Coffee takes you through the origins and background of Jamaican Blue Mountain, as well as the three major categories and seven export grades of Blue Mountain coffee classified by altitude and bean size. From Blue Mountain No. 1 to Blue Mountain Peaberry, each grade has strict regulations on screen size and defect bean ratio. This article will provide a detailed analysis of the grading standards for Jamaican Blue Mountain green beans, helping coffee enthusiasts gain a more accurate understanding of this legendary production region. [more…]

When it comes to African specialty coffee, Yirgacheffe is undoubtedly a name that cannot be avoided. It is both a producing region in Ethiopia and represents the benchmark standard for the country's specialty coffee. This land is located at an altitude of about 1,800 to 2,000 meters, making it one of the highest coffee-growing areas in Ethiopia. It is precisely such unique geographical conditions that give rise to coffee flavors with citrus notes and rich floral aromas. In terms of green bean processing, Yirgacheffe is mainly divided into two directions: natural and washed. Natural processing gives the cup a fuller and sweeter mouthfeel, while washed processing brings a clearer aroma expression. At the same time, the washed process can also shorten the processing cycle from one to two months to three to five days. In addition, Yirgacheffe is classified into different grades such as G1 to G4 according to the degree of defects, and the smaller the number, the better the quality. This article will provide a comprehensive understanding of this coffee from aspects such as flavor characteristics, processing methods, and the grading system. If you have not yet tasted Yirgacheffe, you may wish to add it to your list for next time, for example, the Yirgacheffe produced by Front Street Coffee is worth paying attention to. [more…]

Yirgacheffe Kochere is one of Ethiopia's most renowned micro-regions, and the coffee beans it produces are famous for their lively citrus acidity, silky sweetness, and rich floral and fruity notes. This article provides an in-depth analysis of the terroir characteristics of the Kochere region, the washed processing method, and Ethiopia's unique coffee grading system—especially the specific differences between G1 and G2 grades in flavor and quality. At the same time, Front Street Coffee will share the roasting curve, cupping report, and pour-over brewing insights for this bean, helping coffee lovers fully understand the charm of Kochere coffee. [more…]

Jamaican Blue Mountain Coffee, as a representative of the world's top specialty coffee, has always attracted much attention for its cultivation conditions, variety classification, and grading standards in the Wallenford Estate production area. Starting from the unique flavor of Blue Mountain Coffee, this article provides a detailed overview of the production area divisions and grading systems of Jamaica's three major coffee varieties—Blue Mountain Coffee, High Mountain Coffee, and Jamaican Coffee—analyzes the definition of Blue Mountain Coffee under CIB standards at elevations above 666 meters, and introduces Front Street Coffee Blue Mountain's low caffeine content, flavor characteristics, and medium-roast recommendation. At the same time, it examines the relationship between the scarcity of Blue Mountain Coffee production and its market price, helping coffee enthusiasts gain a comprehensive understanding of the true nature of this legendary coffee. [more…]

Brazil is the world's largest coffee producer, accounting for about one-third of global output. Because its growing regions span 14 states, Brazil uses a three-dimensional grading system based on defect rate, screen size, and cup profile to ensure consistent quality. This article will explain in detail Brazil's three coffee bean grading methods, decode the meaning of the grade markings on green bean jute sacks, and introduce two products recommended by Front Street Coffee: the Brazil Cerrado everyday drinking bean and the Queen Estate Yellow Bourbon, helping coffee lovers gain a deeper understanding of the unique appeal of Brazilian coffee. [more…]

The world of coffee beans is far more complex than that smudge of amber in your cup. From the small white jasmine-like flowers on the branch to the green raw beans in the processing plant, every coffee bean has undergone layer upon layer of selection by climate, altitude, variety, and processing method. There are about sixty coffee-producing countries worldwide, each grading coffee according to whether it is washed, whether the bean shape is flat or round, bean size, cultivation altitude, defect rate, and even taste tests. The two major varieties, Arabica and Robusta, each hold their own in terms of yield and flavor, while new crop, one-year-old, and multi-year-old beans each have their own character. Understanding these specifications and grading standards not only helps enthusiasts decipher the terminology on packaging, but also understand why beans from the same origin can present such a kaleidoscope of flavors. This article will start from basic common knowledge and systematically sort out the grading logic and refining process of coffee beans. [more…]

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…]

Hawaiian Kona coffee has long enjoyed the reputation of being the king of island coffees, and together with Jamaican Blue Mountain it is known as the "king and queen" of the coffee world. This article will take you deep into the cultivation history of Kona coffee, the terroir conditions of its producing region, and the characteristics of its grade classifications, while focusing on the top-tier Kona coffee beans produced by Queen Estate—grown at an altitude of 1,100 meters, of the Typica variety, washed processed, and medium roasted, offering a rich fruity profile weaving together mulberry, black plum, plum, and maltose when brewed as pour-over, with a juice-like mouthfeel that leaves a deep impression. In addition, at the end of the article there is a purchasing recommendation from Front Street Coffee to help you find the Kona flavor you desire. [more…]