Blue Mountain coffee is all the more precious because of its scarce production, but the reason it has long maintained a reputation for high quality is inseparable from a rigorous grading system. Even if the coffee beans do indeed come from Jamaica's legally designated Blue Mountain region, they must still be carefully classified according to the size specifications and defect ratio of the green beans before their grade can be finally determined. This article will comprehensively sort out the grading logic of Blue Mountain coffee from No. 1 to Peaberry, analyze key indicators such as defect rate and bean screen size, and explain why, beyond grade, the vintage and the specific estate are also important factors determining the flavor expression of Blue Mountain. At the same time, by combining the roasting and brewing characteristics of Front Street Coffee's Blue Mountain coffee, it presents its signature nutty notes and balanced mouthfeel, helping coffee lovers understand this legendary coffee more systematically. [more…]

When two café owners ask each other about the grade of beans they use, what lies behind the question is a complex set of international coffee grading logic. Brazil's defect-score system, Central America's altitude standards, East Africa's screen sizes—each producing country has developed a completely different quality evaluation system based on its own national conditions. This article will systematically sort out three mainstream grading methods: by origin altitude, by green bean screen size, and by a composite evaluation method combining screen size and defective bean ratio, and will explain in detail Brazil's unique three-tier grading system and its strict cupper culture. Whether you are a newly initiated enthusiast or a seasoned professional, understanding these standards can help you judge coffee quality more accurately and also provide a reference for everyday purchasing. [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…]

The production of Blue Mountain coffee has always been limited, yet its grading standards are remarkably rigorous. Even if the beans are genuinely grown in Jamaica's legally designated Blue Mountain region, their grade must still be determined by two criteria: bean size and the proportion of defective beans. Front Street Coffee's Jamaican Blue Mountain grading system is built around precisely this logic: for any coffee bearing the Blue Mountain name, the proportion of defective beans must not exceed 2%, and only on that premise are screen sizes used to distinguish higher grades from lower ones. Understanding these grading rules helps coffee lovers look beyond grade labels when making purchases and focus instead on deeper quality clues such as vintage and specific estates. [more…]

Brazil is the world's largest coffee-producing country, and the coffee beans from the Cerrado region in the central-west of Minas Gerais are known for their balanced mouthfeel and mild aroma, and are often used in espresso blends to enhance stability and flavor complexity. Among the Front Street Coffee daily drinking bean series, the Brazil Cerrado Red Bourbon, with its rich, smooth body and intense chocolate and nutty notes, is deeply loved by coffee enthusiasts. This article will systematically introduce the terroir conditions of the Cerrado region, the characteristics of the Bourbon variety, and the pulped natural processing method, and will break down in detail the three major grading dimensions of Brazilian green coffee—the proportion of defective beans (NY grade), screen size specification, and cup profile. Finally, it includes Front Street Coffee baristas' brewing parameters and flavor description for this medium-dark roast bean, helping readers fully understand the actual meaning of NY.2SC 17/18 FC. [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…]

Brazil, as the world's largest coffee producer, supplies about 45% of the world's green coffee beans, and its production fluctuations directly affect international coffee price trends. However, Brazil has numerous coffee-producing regions with uneven quality, making grading work especially complex. Front Street Coffee takes you on an in-depth look at Brazil's green bean grading system—from the flatland growing environment at altitudes of 600 to 1200 meters, to the flavor differences among seven major producing regions including Minas and São Paulo states, and to the multiple grading standards centered on defect deductions, screen size specifications, and cup quality flavors. The article will also introduce the origin information and flavor performance of Front Street Brazil Queen's Estate Yellow Bourbon coffee and Cerrado coffee, helping you fully understand the specialty potential of this representative neutral coffee country. [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…]

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…]

Blue Mountain coffee is Jamaica's most iconic specialty coffee. Authentic Blue Mountain beans come from the Typica variety grown at elevations of roughly 910 to 1,700 meters in the Blue Mountain range, and are scarce in supply and expensive. This article begins with the history of Jamaican coffee, sorts out the grading logic behind Blue Mountain coffee, High Mountain coffee, and Prime coffee, explains the defect rate and screen size standards for Blue Mountain No. 1, and shares practical tips for identifying genuine Blue Mountain coffee. Finally, using Front Street Coffee's Jamaica Blue Mountain No. 1 as an example, it provides a three-pour hand-brewing recipe using a KONO dripper, a water temperature of 88 to 90 degrees, and a 1:15 coffee-to-water ratio, bringing out the classic flavor woven from dark chocolate, roasted nuts, and caramel. [more…]

Coffee beans are grown widely across the globe, and the geographical conditions and cultivation methods of each producing region differ significantly, so it is impossible to measure all beans by the same standard. Different countries develop grading systems suited to their own local conditions. At present, the mainstream bases can be grouped into three categories: bean size, growing altitude (bean density/hardness), and defect ratio. However, these three are not mutually exclusive; many origins use multiple methods at once, and even after preliminary grading they supplement this with cupping to compensate for blind spots in the system. This article will break down these three major grading logics one by one and explain the actual meaning of common grade markers such as AA and G1, helping enthusiasts decipher the grade code on the packaging. [more…]

Blue Mountain coffee, produced in Jamaica's legally designated region, has long been regarded as a treasure among coffees. Some readers have asked whether Front Street Blue Mountain No. 1 coffee beans can be used to make moka pot coffee. The answer is yes, but only on the condition that you choose an authentic bag of Blue Mountain. This article will systematically sort out the purchasing and identification of Blue Mountain coffee, the CIB certification system, the grading standards, and the quota history, and will demonstrate brewing Front Street Blue Mountain No. 1 using two methods: pour-over and moka pot. Finally, it will present the complete process of making a moka pot Blue Mountain Americano and a Blue Mountain Latte, helping coffee lovers enjoy authentic Blue Mountain flavor at home. [more…]

As a superpower accounting for about 45% of global coffee production, Brazil's green coffee grading system is not a single standard, but rather an assessment that integrates multiple dimensions such as the proportion of defective beans, screen size specifications, and cup profile. From the perspective of Front Street, this article will outline the origin distribution characteristics, main grading methods, and criteria of Brazilian coffee, decipher the meanings behind professional terms such as NY.2, 17/18 screen, and Strictly Soft, introduce the terroir characteristics of representative producing regions such as Mogiana and Cerrado, and share specific information about Queen's Farm coffee from Brazil on Front Street's bean list, helping coffee enthusiasts gain a more systematic understanding of the quality indicators and traceability logic of Brazilian green coffee. [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…]

On the burlap sacks of Brazilian coffee, a string of seemingly complex codes is often printed, such as "CERRADO NY-2 SC-17/18 SS FC". These letters and numbers are not arranged at random, but are green bean grading information established by the Brazilian Ministry of Agriculture, Livestock and Supply (MAPA), covering region of origin, defect level, screen size, cup performance and sensory grade. Among them, the defect grading starts with "NY", but why does it only go as high as NY2, with no NY1? Behind this lies both historical origins and a close connection to the industrial production characteristics of Brazilian coffee. This article will break down this grading system one by one, and introduce several classic espresso blends from Front Street Coffee that contain Brazilian beans, along with their espresso extraction parameters. [more…]

Colombia, as a major global exporter of Arabica coffee, has a green bean grading system centered on Excelso as the core export standard, with strict regulations on bean size, defect scoring, moisture content, and more. This article starts with the soft, aromatic characteristics of Colombian coffee, explains in detail FNC's defect scoring rules and Supremo grade requirements, while tracing the journey of the Geisha variety from the forests of Ethiopia to Hacienda La Esmeralda in Panama, and focuses on the Hanami Geisha blend coffee from Finca Mont Blanc in the Huila region. Front Street Coffee presents its layers of pink pepper, chamomile, mandarin, honey, and almond through a light roast, and the article includes complete brewing parameters and recommendations. [more…]

Colombian coffee is renowned worldwide for its mild acidity and its black chocolate and caramel-like sweetness, making it a perennial bean in espresso blends and pour-over brewing. This article begins with the symbols of Colombian coffee and its producing environment, systematically reviewing the distribution of southern specialty growing regions, the green bean screen size grading system and defect rate standards, and explaining in detail how processing methods such as washed and anaerobic natural affect flavor. At the same time, the article provides specific parameters for V60 pour-over, including a coffee-to-water ratio of 1:15 and a water temperature of 90-91°C, and fully includes the flavor descriptions of Front Street Coffee's four Colombian bean offerings, helping enthusiasts choose beans and brew. [more…]

Ethiopia, as the genetic repository of Arabica, has a truly unique coffee bean grading system. Because there are so many varieties, most growing wild or semi-wild, coffee farmers often process them in mixed batches at harvest, making it difficult to grade by size. As a result, the Ethiopian government chose to use defect rate as the primary criterion. After the new ECX system was implemented in 2009, cupping scores were also incorporated into the rating system, finally giving natural-process beans a chance to rank among G1 and G2. So, for washed Yirgacheffe of the same origin, just how big is the difference between G1 and G2? Front Street Coffee takes Kochere G1 and a washed Yirgacheffe everyday drinking bean G2 as examples, comparing green bean appearance, defect rate, and cupping flavor to give you a closer look. [more…]

Brazil, as the world's largest coffee producer, is known for the coffee beans from the Cerrado region in the central-west of Minas Gerais, which are celebrated for their mild flavor and consistent quality. Among Front Street Coffee's daily drinking bean series, the Brazil Cerrado Red Bourbon has won the favor of many coffee lovers with its rich, smooth body and intense chocolate and nutty flavors. This article will systematically review the terroir conditions of the Cerrado region, the characteristics of the Bourbon variety, and the semi-washed processing method, and will further analyze the three major grading dimensions of Brazilian green coffee—defect ratio, screen size specifications, and cup profile—to help readers thoroughly understand the complete meaning behind the label "Brazil NY.2SC – 17/18 FC Cerrado," along with the brewing parameters and flavor tasting notes from Front Street Coffee's baristas. [more…]

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…]