The green coffee bean grading system directly affects roasting results and coffee quality. This article systematically sorts out two mainstream grading methods: distinguishing bean size by screen mesh number, and classifying grades based on growing altitude. It also summarizes the common grading standards and codes of origins such as Kenya, Ethiopia, Colombia, Brazil, Guatemala, El Salvador, Hawaii, Jamaica, and Indonesia. Whether for bulk trade or specialty coffee, understanding these grading rules helps to more accurately judge the characteristics of green beans, and Front Street Coffee also incorporates this knowledge into its daily bean selection and roasting practices. [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…]

Brazil, as the world's largest coffee producer, accounts for about one-third of the global market in exports. Its beans have a flavor profile that is low in acidity and high in sweetness, with a full-bodied mouthfeel, and they are often used in coffee blends. When purchasing Brazilian green beans, you will often see markings such as "CERRADO NY-2 SC-17/18 SS FC" printed on the burlap sacks, where every letter and number corresponds to strict grading information. These codes are established by the Brazilian Ministry of Agriculture, Livestock and Supply (MAPA) and cover five major dimensions: producing region, defect rate, screen size, cup score, and sensory grade. This article will break down the meanings of symbols such as "SS" and "FC" one by one to help coffee enthusiasts understand the complete quality profile of Brazilian beans. [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…]

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…]

As the world's largest coffee producer, Brazil has a uniquely distinctive grading system that combines three criteria—defect rate, screen size, and cupping flavor—which sets it apart from the single-criteria grading methods used by most producing countries. By understanding the markings on a bag, such as "Brazil NY.2 SC – 17/18 FC Cerrado," you can quickly grasp a Brazilian bean's quality and origin information. This article will break down these three grading systems one by one, explain the six-tier classification standards for taste and flavor, and recommend two Brazilian specialty beans from Front Street Coffee—Queen's Farm Yellow Bourbon and Cerrado everyday drinking beans—to help coffee lovers find the Brazilian flavor that suits them. [more…]

Jamaican Blue Mountain coffee is globally recognized as one of the top coffees, but do you know how it is graded? This article will guide you through the basis for grading Blue Mountain coffee—screen size—and the strict cupping confirmation process. From No. 1 to No. 3, coffee beans of different screen sizes show no difference in taste, but there is a distinction between wooden barrels and burlap sacks for green bean packaging. Barrel-packed Blue Mountain coffee also comes with a certificate of origin, and the barrel is printed with information about the estate and importer. In addition, the Jamaican government has clear regulations on the export of defective beans and coffee beans with taste issues. Front Street Coffee reminds you that understanding this grading knowledge helps in identifying authentic Blue Mountain coffee. [more…]

For more specialty coffee knowledge, please follow our WeChat official account: Front Street Coffee (FrontStreet Coffee). Many friends, while drinking coffee at Front Street, ask our baristas, "What is Yirgacheffe G1 and Yirgacheffe G2?" "What is Kenya AA, AB?" What is Guate... [more…]

Different coffee-producing countries have developed their own unique quality grading systems due to their distinct cultivation histories and processing traditions. Some focus on defect ratios, some measure bean size, and others rely on cupping to make judgments. This article focuses on Colombia, outlining the Excelso export standard in its green bean grading system, the defect scoring rules, the screen size classification method, and the flavor profile of Supremo-grade Huila beans. It also includes the brewing parameters and taste description of Front Street Coffee's Huila everyday drinking beans, making it suitable for enthusiasts who want to systematically understand Colombian coffee. [more…]

The grading systems for coffee beans vary widely depending on the origin—some are based on the number of defects, others on bean size, and still others on altitude. Understanding these grade labels is an important step in selecting high-quality coffee. This article will systematically outline the green bean grading rules of major global producing regions, covering common designations such as Ethiopia's G1-G9, Kenya's AA and PB, Colombia's Supremo, and Hawaii's Extra Fancy, and explain how cupping scores further distinguish specialty grade from commercial grade. Whether you are a beginner enthusiast or a professional seeking to advance, this grading guide can help you judge coffee quality more clearly. For more professional content, follow Coffee Workshop; for specialty coffee beans, add Front Street Coffee on WeChat at qjcoffeex. [more…]

When selecting coffee beans, you'll often come across labels like Yirgacheffe G2 or Kenya AA. Behind these letters and numbers lies the logic each producing country uses to assess green bean quality. Due to differences in history, trade, climate, and terrain, grading criteria vary widely from country to country—some focus on defect rates, some measure bean size, and others test altitude or hardness—and they cannot be directly compared across origins. Front Street Coffee has compiled the grading systems of representative producing countries including Ethiopia, Kenya, Colombia, Jamaica, Costa Rica, Panama, Guatemala, El Salvador, Honduras, and Brazil to help you understand the ins and outs behind green bean grades. [more…]

When selecting coffee beans, letter markings like AA and G1 often appear on packaging, and they actually represent the green bean grading systems of different origins. In this article, Front Street will guide you through Ethiopia's G1 to G5 grades, which are classified by the proportion of defective beans, as well as the nine-level classification method that combines physical characteristics and cupping scores after the establishment of the ECX. In addition, we will introduce Kenya's eight grades, including AA, AB, and PB, which are distinguished by bean size, and briefly mention the grading criteria of Colombia, Jamaica, Brazil, and other countries, to help you better understand the meaning behind these markings when buying beans. [more…]

Colombia is a major producer of global Arabica coffee, and its green bean exports follow a grading system centered on defect rates and bean size. What exactly do the Supremo and Excelso labels commonly seen on the market represent? Starting from FNC's export standards, this article sorts out Excelso's mandatory requirements, the logic behind screen-size grading, and the specific tolerance rates for the three commonly used grades UGQ, EP, and Supremo, while also explaining the defect scoring rules behind the number string "12*60," helping coffee enthusiasts decipher the grading code in the names of Colombian green coffee beans. [more…]

When purchasing Colombian coffee, what exactly do Supremo and Excelso, commonly seen on burlap sacks, represent? What is the relationship between the two? This article will systematically sort out the grading system for Colombian green coffee, interpreting one by one the specific requirements of grades such as UGQ, EP, and Supremo, from defect rates and screen sizes to FNC export standards. It will also introduce derivative grades such as Extra, Premium, and Minama, as well as the use of Product of Colombia for coffee that does not meet export standards. The article also includes an actual naming example of Front Street Coffee's Huila daily drinking beans, helping readers understand the compositional logic and traceability methods of Colombian green coffee names. [more…]

Colombian coffee occupies an important place in the world of specialty coffee, and its green bean grading system is based primarily on defect rates and bean screen size. When buying Colombian coffee, what exactly do the words "Supremo" and "Excelso" commonly seen on burlap sacks mean? This article will systematically sort out the grading rules for Colombian green coffee beans from multiple angles, including export standards, defect scoring, and screen-size classification, and explain the specific differences among the three grades UGQ, EP, and Supremo. At the same time, the article will also introduce common Colombian coffee bean brands on the market, including product information recommended by Front Street Coffee, to help coffee lovers more clearly understand the grade and quality of the bag of beans in their hands. [more…]

As an agricultural product, coffee beans vary significantly in quality, so a grading system is needed to standardize quality and provide reference for buyers. However, the geographical environments and cultivation models of global producing regions differ enormously, making it impossible to measure them with a unified standard; each region can only adapt to local conditions. Currently, mainstream grading methods fall into three major categories: screen size, altitude/hardness, and defect rate, and many countries combine them or even add cupping to compensate for shortcomings. This article will systematically sort out the logic and representative producing countries of these three grading methods, with a focus on analyzing how Kenya grades solely by bean size, and introduce the grading practices of Colombia, Ethiopia, Jamaica, Indonesia, Brazil, and other countries. Front Street Coffee will also share related brand product information to help coffee enthusiasts understand the meaning behind green bean grades. [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…]

Blue Mountain coffee, as a representative of the world's top specialty coffee, has extremely strict origin protection systems and grading standards. Jamaican law stipulates that only coffee produced in the Blue Mountain region may bear the name Blue Mountain. High-grade Blue Mountain coffee is classified by screen size into No. 1, No. 2, and No. 3 grades, and all must be exported in wooden barrels. This article will provide a detailed explanation of the basis for Blue Mountain coffee's grade classification, wooden barrel packaging specifications, the certificate of origin system, and export restrictions on damaged and defective beans, helping coffee enthusiasts fully understand the key points for identifying authentic Blue Mountain coffee. Front Street Coffee reminds you that when purchasing Blue Mountain coffee, pay attention to the roast level and import channels to avoid buying inferior products passed off as genuine ones. [more…]

Colombia, with its exceptional geographical conditions and diverse climate, has become an important producer of high-quality Arabica coffee. Many coffee enthusiasts notice that Colombian coffee beans are generally larger than beans from producing regions such as Ethiopia, Costa Rica, and Brazil, and this is closely tied to Colombia's unique grading system. This article, from the perspective of Front Street Coffee, systematically introduces the standards by which Colombian green beans are graded according to screen size, including the specific specifications of common grades such as UGQ, EP, and Supremo, explains the meaning of the Excelso export grade, and introduces the key role of the FNC (Colombian Coffee Growers Federation) in the industry's development. Finally, it includes the brewing parameters and flavor description of Front Street's Huila everyday drinking beans, helping readers gain a comprehensive understanding of Colombian coffee from grading to tasting. [more…]

As the world's largest coffee producer, Brazil's grading system and flavor characteristics have always been a focal point for coffee enthusiasts. This article systematically reviews the distribution of Brazilian coffee regions, mainstream varieties, and processing methods, and provides a detailed interpretation of the three-dimensional grading system centered on defect rate, screen size specifications, and cup performance. At the same time, using Front Street Coffee's Brazilian Cerrado daily drink beans as an example, it explains how to set brewing parameters according to the characteristics of medium-dark roasted coffee, including dripper selection, water temperature, grind size, and pouring technique, helping readers gain a comprehensive understanding of Brazilian coffee from origin to cup. [more…]