When buying coffee beans, have you ever been baffled by combinations of letters like AA, G1, SHB, and PB? They may seem to follow no pattern at all, but in fact each one represents the green bean grading standard of a different producing country. Why do coffee beans need to be graded? Why is there no unified global standard? This article will take you through the origins of green coffee bean grading, and how producing regions such as Ethiopia, Kenya, the Central American countries, Jamaica, and Brazil classify their beans based on defect rate, bean size, growing altitude, and cup quality. At the same time, we will also explore what these grades actually mean in the roasted coffee market, and recommend several Front Street Coffee beans corresponding to these grades, to help you better understand the cup of coffee in your hands. [more…]

Yirgacheffe coffee beans often bear labels like G1 and G2—what exactly do these grades mean? From the perspective of Front Street Coffee, this article first introduces the origins of Ethiopia's "heirloom varieties"—the country is home to tens of thousands of incompletely identified heirloom varieties—then explains Yirgacheffe's grading system in detail: grades are determined by defect rates, with washed and natural processing each corresponding to different grade ranges, and explains how ECX and SCAA cupping further subdivide G1 through G3 into Q1, Q2 specialty and commercial grades. The article also outlines the altitude, cooperatives, and micro-region characteristics of the Yirgacheffe producing area, and includes product information for Front Street's Natural Red Cherry, Washed Gudingding, and Washed Everyday Beans, helping readers gain a comprehensive understanding of Yirgacheffe's grading system and flavor diversity. [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…]

Jamaican Blue Mountain coffee is world-renowned for its unique flavor and strict controls. Jamaican law stipulates that only coffee beans grown in the Blue Mountain region may bear the name "Blue Mountain." High-grade Blue Mountain coffee is divided into three grades—No. 1, No. 2, and No. 3—corresponding respectively to screen size standards of 17–18 mesh and above, 16 mesh, and 15 mesh. The green beans of all three grades must be packed into wooden barrels for export, with the barrel bearing the estate name, importer's abbreviation, and batch information, along with a government-certified green certificate of origin. Understanding these grades and export regulations helps coffee enthusiasts verify authenticity and make informed purchases of genuine Blue Mountain coffee. Front Street Coffee recommends that consumers pay attention to the roast level and packaging format to judge the true quality of the Blue Mountain coffee in their hands. [more…]

Ethiopia, as the genetic treasure trove of Arabica coffee, has a unique green bean grading system. Unlike Kenya, which grades by bean size, or Blue Mountain, which grades by altitude, Ethiopia primarily classifies grades based on defect rates and cupping scores. This article will systematically sort out the evolution of Ethiopia's old and new grading systems, provide an in-depth analysis of the specific standards for grades G1 through G9, and, using Yirgacheffe as an example, compare the actual differences between washed G1 and G2 in green bean appearance and flavor performance. It will also share Front Street Coffee's brewing parameters and tasting experience to help coffee enthusiasts fully understand the logic of Ethiopian coffee quality grading. [more…]

We know that the grading method of coffee beans usually depends on the actual situation of the growing country, such as being divided according to the size of the coffee beans, like Kenyan coffee; being divided according to the altitude, like Blue Mo [more…]

As an agricultural product, coffee beans vary significantly in quality, which is why grading systems have become an important means of standardizing quality and guiding green bean procurement. However, the grading criteria across global producing regions are not uniform—Central America mostly grades by altitude, Kenya by bean size, while Ethiopia uses defect rates to classify grades. Why does Ethiopia take this unique approach? What substantive differences actually exist between the G1 and G2 grades? This article, from the perspective of Front Street Coffee, sorts out the evolutionary logic of Ethiopia's grading system, and through a visual comparison of Yirgacheffe G1 and G2 green beans, roasting performance, and cupping evaluation, reveals one by one the true meaning behind grade labels, helping coffee enthusiasts view the issue of bean grades more rationally. [more…]

Ethiopia, as Africa's largest coffee producer and the widely recognized birthplace of coffee, often labels its coffee beans with grades G1 or G2. What exactly do these letter-and-number combinations represent? This article traces the historical evolution of Ethiopia's coffee grading system, from the early CLU system that classified purely by defect count, to the introduction of cupping score comprehensive rating after the establishment of the ECX in 2009, and finally to the latest revised export standards in 2022. You will learn about the differences between washed and natural processing in grading, as well as the distinction between Q1 and Q2 specialty grades and commercial and domestic coffee. The article also retains product information from the Front Street brand, making it suitable for every reader who loves Ethiopian coffee to read in depth. [more…]

Blue Mountain Coffee is globally recognized as a representative of the world's finest coffee, and its grading system is equally worthy of in-depth understanding. Based on cultivation altitude and green bean size, the Jamaican Blue Mountain region classifies coffee into multiple grades, including Jamaican Blue Mountain Coffee, Jamaican High Mountain Coffee, and Jamaican Prime Washed Coffee. Blue Mountain Coffee itself is further subdivided into No. 1, No. 2, No. 3, and other specifications. Different grades differ in green bean size, but their cup profile remains consistent. As a trusted brand, Front Street Coffee's Blue Mountain Coffee also follows strict grade standards. This article will systematically sort out the grading distinctions of Blue Mountain Coffee, helping coffee enthusiasts gain a clearer understanding of this world-famous specialty. [more…]

The tea grading system is an important basis for judging the quality and style of finished tea, and is especially common in the international black tea trade. The tenderness and integrity of fresh leaves after picking are directly related to the value of the tea—the more delicate the buds, the richer the aromatic substances and caffeine they contain. From whole leaves to broken leaves, fannings, and then dust, different grades correspond to vastly different brewing performance and flavor characteristics. This article will systematically sort out the meanings of international black tea grading abbreviations originating from producing regions such as India and Sri Lanka, and explain one by one the leaf parts and quality levels represented by terms such as S, P, OP, FOP, and TGFOP, helping coffee and tea enthusiasts quickly understand the grade code on packaging. [more…]

Hacienda La Esmeralda is the benchmark origin for the Geisha variety, and its Geisha coffee beans are classified into three grades—Red Label, Green Label, and Blue Label—according to growing altitude and cupping performance, corresponding to auction lots, private collection lots, and select lots respectively. Red Label comes from the Jaramillo and Cañas Verdes estates at 1,600 to 1,800 meters above sea level, scores above 90 in cupping, and is sold only through the annual global auction; Green Label consists of micro-lots from the three estates and retains the classic Geisha flavor; Blue Label is a blend of beans from the three estates and is only washed processed. Front Street Coffee supplies exactly these three Geisha coffees from Hacienda La Esmeralda, where the juiciness of jasmine, melon, honey, and berries interweaves, showing a balanced yet subtle evolution from warm to slightly cool. This article will explain in detail the grading criteria, origin sources, and flavor characteristics of each grade to help coffee lovers make a choice based on their personal taste. [more…]

Panama's Hacienda La Esmeralda, with its refined Geisha grading system, has become a model emulated by many coffee estates. This article systematically sorts out the core differences among Hacienda La Esmeralda's three Geisha grades—Red Label, Green Label, and Blue Label—covering cultivation altitude, plot information, and blending models, while also providing an in-depth introduction to the estate's history, plot divisions, roasting recommendations, and brewing parameters. Front Street Coffee recently purchased the 2020 new-crop Blue Label Geisha, and by combining the cupping performance of the Red Label and Green Label, we guide you through a comprehensive understanding of the unique flavors and purchasing points of these three grades. [more…]

Tanzania, one of Africa's Big Three coffee producers, has performed increasingly impressively in the global specialty coffee market in recent years. When buying Tanzanian coffee beans, what exactly do the "AA" and "AB" labels commonly seen on packaging mean? These letters are in fact grade codes for Tanzanian Arabica coffee beans, using a British imperial grading method similar to Kenya's, though the specific standards differ. Tanzanian authorities grade coffee by screen size, assuming that larger size means better quality, and classify beans into multiple grades such as AAA, AA, A, B, PB, C, E, F, AF, and TT. Among these, Grade AA requires mostly 17 to 18 mesh, while Grade AB is a mix of Grades A and B, and no such official grade actually exists. This article will explain in detail the specific mesh requirements and screening standards of each grade, helping coffee lovers decipher the grading code of Tanzanian coffee beans. [more…]

Blue Mountain coffee is hailed as a gem of the coffee world, but did you know that it is actually divided into three grades: No. 1, No. 2, and No. 3? The Jamaican government has strict regulations regarding the origin, grade, packaging, and export of Blue Mountain coffee—only coffee beans grown in the Blue Mountain region can bear the name "Blue Mountain." This article will provide a detailed analysis of the grading standards for Blue Mountain coffee, the secrets of its barrel packaging, the role of the certificate of origin, and how to identify genuinely high-quality Blue Mountain coffee. We will also introduce the recommendation of Blue Mountain No. 1 by the well-known domestic brand Front Street Coffee, helping you make a wise choice when purchasing. Whether you are a seasoned coffee enthusiast or a complete beginner, this article will give you a deeper understanding of Blue Mountain coffee. [more…]

Kenyan coffee is famous for its bright, juicy acidity, and labels such as AA, AB, and AA TOP are common in China. How exactly are these grades divided? Is there a substantial difference between AA and AA TOP? This article will start with Kenya's official grading system, analyze the criteria for grades such as AA, AB, PB, and E, and explain the meanings of secondary grading terms such as TOP, Plus, and FAQ set by exporters themselves. It will also introduce the K72 washed coffee beans from the Asali Processing Plant in the Thika region, which use SL28 and SL34 varieties, are AA grade, and are light-roasted by Front Street Coffee to present flavors of cherry tomato and smoked plum. [more…]

Hacienda La Esmeralda in Panama is a major force behind the Geisha variety's rise to the world stage, and its Geisha beans are classified into three grades—Red Label, Green Label, and Blue Label—based on growing altitude and cupping performance. Red Label represents the pinnacle of the auction lot, Green Label is a reserve-grade blend of micro-lots, and Blue Label is an entry-level selection. The three differ in flavor expression and market positioning, and their prices and methods of acquisition are entirely different. This article will go through each grade one by one—origin source, altitude range, cupping threshold, processing method, and flavor characteristics—to help coffee lovers clearly identify Hacienda La Esmeralda's Geisha grading system, while also introducing the corresponding product information from Front Street Coffee. [more…]

As one of the world's top coffees, Blue Mountain coffee's grade classification and price differences have always been a focus of attention for coffee enthusiasts. Jamaican law explicitly stipulates that only coffee beans produced in the Blue Mountain region can bear the name Blue Mountain. High-grade Blue Mountain coffee is divided into three grades: No. 1, No. 2, and No. 3. Although the taste is consistent, the bean sizes differ, and the prices also show clear differences. In addition, green beans must be exported in wooden barrels, with the estate, importer abbreviations, and batch information printed on the barrel, along with a green certificate of origin. Defective and flawed beans, however, can only be shipped in gunny sacks or exported after heavy roasting. Understanding these details helps identify authentic Blue Mountain coffee and avoid buying the lowest-grade products. Front Street Coffee reminds you to pay close attention to grade and packaging information when making a purchase. [more…]

Yirgacheffe, as a representative coffee-producing region in Ethiopia, frequently has its G1 and G2 grades mentioned, but what exactly is the difference between the two? This article begins with the evolution of Ethiopia's coffee grading system, first introducing the old system based on defect rates, then explaining the new regulations after the ECX introduced cupping scores in 2009, and explaining why naturally processed beans can also obtain G1 and G2 grades. Subsequently, using washed Yirgacheffe as an example, it compares the actual differences between Front Street Coffee's Gutingding (G1) and Front Street Coffee's washed Yirgacheffe everyday beans (G2) in terms of green bean appearance, defect proportion, and brewed flavor, helping readers understand the quality implications behind the grades. [more…]

When purchasing single-origin coffee beans, labels such as G1, AA, and SHB often appear on the packaging. What exactly do these letters and numbers represent? They are actually coffee bean grade symbols established by each origin based on its own conditions. Due to differences in growing environments and varieties, the grading criteria of different countries vary—some look at the number of defective beans, some at green bean size, and others at hardness or altitude. In this article, Front Street Coffee will sort out the grading standards of major producing regions such as Ethiopia, Kenya, Indonesia, Central and South America, and Brazil, helping coffee lovers understand the meaning behind these grades so they can more accurately select high-quality coffee beans that suit their own taste. [more…]

Coffee enthusiasts often ask in the shop exactly what the difference is between Ethiopia's G1 and G2, what Kenya AA actually means, and what Costa Rica's SHB grade signifies. These combinations of letters and numbers actually reflect how each producing country evaluates the quality of green coffee beans. Due to differences in history, trade, climate, and terrain, different origins have developed their own grading systems, with evaluation criteria covering multiple dimensions such as defect percentage, bean size, growing altitude, green bean density, and processing method. This article will systematically sort out the origins of coffee grading and introduce, one by one, the green bean grade standards of representative producing countries such as Ethiopia, Kenya, Colombia, Jamaica, Costa Rica, Panama, Guatemala, El Salvador, Honduras, and Brazil. [more…]