Yirgacheffe is one of Ethiopia's most representative specialty coffee regions, and Front Street Yirgacheffe G1 and Front Street Yirgacheffe G2 are the two beans most easily available for everyday purchase. What exactly is the difference between G1 and G2? Which one is of better quality? To answer these questions, one must first understand Ethiopia's coffee grading system. From the evaluation perspective of Front Street Coffee, this article sorts out the origins and development of the two grading systems, CLU and ECX, analyzes the respective scoring dimensions of washed and natural processing, and presents the real differences between Front Street Yirgacheffe G1 and G2 through a direct comparison of green bean appearance, roasted bean appearance, and cupping flavor. [more…]

Yirgacheffe is one of Ethiopia's most representative specialty coffee regions, but what exactly is the difference between the commonly found Front Street Yirgacheffe G1 and G2 coffee beans? Which grade is higher? Behind this lies Ethiopia's complex coffee grading system. Starting from CoffeeHunters' review, this article systematically sorts out Ethiopia's coffee grading standards, compares the differences between G1 and G2 in defect rate, cupping score, and flavor performance, and helps coffee lovers gain a deeper understanding of the secrets of Yirgacheffe's grades. [more…]

As the birthplace of coffee, Ethiopia's grading system directly affects the quality and flavor expression of coffee beans. The Yirgacheffe region is world-renowned, but what exactly is the difference between the commonly seen Front Street Yirgacheffe G1 and G2 coffee beans on the market? Behind this lies the evolution of Ethiopia's coffee grading system. From CLU to ECX, from simple defect counting to a comprehensive score combining physical characteristics and cupping flavor, the grading standards have undergone major changes. This article will systematically review the historical development and specific standards of Ethiopian coffee grading, compare the grading differences between washed and natural processing, and through three dimensions—green bean appearance, roasted bean appearance, and cupping flavor—deeply analyze the actual differences between Front Street Yirgacheffe G1 and G2, helping coffee enthusiasts understand the quality implications behind the grade numbers. [more…]

Yirgacheffe is a highly representative coffee-producing region in Ethiopia, and its G1 and G2 grades often confuse enthusiasts. Starting with Ethiopia's coffee grading system, this article sorts out the rating evolution of CLU and ECX, explains in detail the scoring standards of washed and natural processing in terms of physical characteristics and cupping quality, and compares the actual differences between Front Street Coffee Yirgacheffe G1 and G2 in green bean appearance, roasted bean appearance, and flavor. Through cupping, it was found that although the two share citrus, fruit tea, honey, and berry tones, G1 is superior in cleanliness and aroma refinement, while G2 is slightly thinner. It is suitable for coffee enthusiasts who want to gain an in-depth understanding of Yirgacheffe grades and purchasing. [more…]

The name Mandheling coffee originates from an amusing misunderstanding, and today the Mandheling G1 produced by PWN, Indonesia's most renowned coffee purchaser, represents the pinnacle of Sumatran coffee. The G1 grade is custom-made exclusively for Japanese trading companies, with the number of defective beans strictly limited to no more than 3 points per 300 grams. However, PWN Mandheling G1 is not equivalent to Golden Mandheling—the latter requires four rounds of hand-sorting, and its annual output is extremely scarce. This article will systematically sort out the essential differences between PWN Mandheling G1 and Golden Mandheling, from historical origins, grade classification, and origin terroir to Front Street Coffee's actual recommendations, helping coffee enthusiasts clearly understand the positioning and flavor direction of these two beans. [more…]

Ethiopian coffee has always won the favor of many coffee lovers with its affordable prices and rich floral and fruity aromas. But faced with the bewildering array of grade labels on the market, such as Yirgacheffe's G1 and G2, many people are not clear on exactly how they differ and which is more worth buying. This article will start with the price level of Ethiopian coffee, combine it with specific beans from Front Street Coffee, and then delve into the evolution of the country's coffee grading system—from the early CLU defect-count grading to the ECX scoring system that combines physical characteristics with cupping flavor—breaking down one by one the logic of grade classification under washed and natural processing, and focusing on comparing the substantive differences between G1 and G2 in defect rate and cupping score, to help you make more rational purchases of Ethiopian coffee. [more…]

Yirgacheffe, as Ethiopia's most representative coffee region, has long been favored by coffee enthusiasts for the floral and fruity flavors produced by its washed and natural processing methods. But do you know how the G1 and G2 grades are actually divided? And what substantial differences exist between them? This article will systematically sort out Ethiopia's coffee bean grading system, tracing the evolution from CLU to ECX, explaining in detail the scoring standards for washed and natural processing methods in terms of physical characteristics and cup quality, and through an actual cupping comparison of Front Street Coffee's Yirgacheffe G1 and G2, reveal the specific differences between the two in terms of cleanliness, aroma complexity, and defect rate, helping you make a clearer judgment when purchasing. [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…]

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…]

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…]

We know that coffee bean grading methods are usually based on the actual conditions of the growing country. Some are graded by bean size, such as Kenyan coffee; some by altitude, such as Blue Mountain coffee; and some by defect rate, such as Ethiopian coffee. As the gene pool of Arabica, Ethiopia has a wide variety of coffee varieties. [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…]

Ethiopia's coffee grading system is unique, using defect rate as its core criterion, which stands in sharp contrast to the practices of most producing regions that grade by altitude or bean size. As the two most common grades, G1 and G2—just how big is the gap between them in terms of green bean appearance, roasting performance, and cup flavor? From the perspective of Front Street, this article traces the origins of the Ethiopian grading system, and through a comparative test of Yirgacheffe G1 and G2, examines everything from green bean condition and roast color values to brewing and tasting, helping coffee enthusiasts understand the practical meaning of grade labels and what role they actually play in the consumption of roasted beans. [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…]

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 a representative of Ethiopian specialty coffee, Yirgacheffe's G1 grade presents strikingly different flavor profiles depending on the processing method. Washed Yirgacheffe G1 is known for its bright style interweaving citrus and floral notes, while natural Yirgacheffe G1 overturns many people's preconceived notions of coffee with its rich fruity aroma and fermented quality. This article will comprehensively analyze the brewing key points of Front Street Yirgacheffe G1, from variety origin, grade classification, flavor characteristics to grinding and extraction, guiding you to appreciate the unique charm of "coffee enters the mouth, a hundred flowers bloom." [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…]

Mandheling coffee is deeply favored by enthusiasts for its rich and full-bodied taste, but do you know the grading standards for Indonesian coffee beans? What exactly are the differences between PWN Golden Mandheling and regular G1 Mandheling? This article will provide a detailed introduction to the grading system for Indonesian green coffee beans, analyzing the grade standards from G1 to G6 based on defect rates, screen sizes, and other dimensions, and will delve into how PWN company creates its uniquely distinctive Golden Mandheling through strict screening processes. At the same time, Front Street Coffee will share brewing suggestions for Golden Mandheling to help you better savor this high-quality coffee with regional character. [more…]

The name Mandheling originates from a beautiful misunderstanding during World War II, and today almost all of Indonesia's finest Mandheling comes from PWN (Pwani Coffee Company). G1 represents the highest grade of washed beans, with no more than 3 defective beans per 300 grams; Golden Mandheling, on the other hand, requires four rounds of hand sorting, with an annual output of less than 1 ton. This article systematically sorts out the unique characteristics of PWN Mandheling G1 and Golden Mandheling, from historical anecdotes, grade standards, and origin processing methods to cupping flavors, and compares the differences in Lintong Mandheling's performance in terms of fruit acidity, body, and herbal aroma, helping coffee enthusiasts understand the flavor codes and key purchasing points of these two top-grade Mandheling coffees, while also introducing the related product features of the Front Street Coffee brand. [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…]