Introduction:Want to understand how Ethiopian Yirgacheffe coffee beans are graded? Starting from the scoring mechanism of the Ethiopia Commodity Exchange (ECX), we’ll break down the grading weightings for washed and natural processed beans, help you understand the three classifications—Specialty, Commercial, and Local—as well as the selection criteria for Q1 and Q2 grades. We’ll also explain why there’s such a wide price range for Arabica coffee beans and share the flavor profiles and recommended brewing methods for two popular G1 Yirgacheffe coffees.

The Ethiopia Commodity Exchange (ECX) is the country’s primary agricultural product trading platform, assisting buyers and sellers in completing transactions while ensuring product quality, delivery, and payment processes run smoothly. The institution aims to establish an efficient, transparent, and trustworthy global commodity marketplace through innovation and technology, driving the development of Ethiopia’s agriculture and economy.

In the coffee sector, ECX has set up storage centers in various regions across the country to receive, grade, and store coffee beans, which are then traded through a unified auction platform by registered members (usually private exporters). Since 2008, Ethiopia has mandated that all private exporters must sell their coffee through the ECX. While this ensures a regulated trading process, it also makes traceability to specific farms or processing facilities difficult, as auctioned coffee is usually only identifiable by major regions, not individual farms or mills. However, if you can select a Specialty G1 grade that has undergone rigorous screening, its quality remains trustworthy.

In the past, Ethiopia’s grading system was primarily based on the number of defective beans—for example, washed coffee could achieve up to Grade 1 (G1), while natural processed coffee was limited to Grade 3 (G3) at most. The current system, however, has shifted to a more comprehensive evaluation based on both physical characteristics and cupping flavor performance, with ECX implementing a more refined scoring system to better align with the demands of the international specialty coffee market.

Coffee is first categorized by processing method into three types: washed (Washed), natural (Unwashed / Natural), and by market use into three major categories: Specialty (premium), Commercial (commercial), and Local (domestic market). Among these, Specialty and Commercial are mainly for international export, while Local is intended for the domestic consumer market.

Next, let’s take a closer look at ECX’s specific grading criteria:

Grading structure for washed processed coffee

• Physical characteristics account for 40%: including defect count (20%), bean size appearance (10%), color (5%), and aroma (5%)
• Cupping quality accounts for 60%: including cleanliness (15%), acidity (15%), mouthfeel (15%), and flavor characteristics (15%)

Grading structure for natural processed coffee

• Physical characteristics account for 40%: of which defect count makes up 30%, and aroma 10%
• Cupping quality accounts for 60%: including cleanliness (15%), acidity (15%), mouthfeel (15%), and flavor characteristics (15%)

After the overall scoring, all coffee is classified by processing method and then divided into nine grades from G1 to G9 based on physical and cupping performance. Among them, G1 to G3 coffees undergo a further re-evaluation using SCAA (now followed by institutions like Coffee Review) cupping standards. Only those G1 and G2 beans with outstanding flavor performance and scores of 85 or above can be rated as Q1 grade; G1 to G2 and G3 beans scoring between 80 and 85 are rated as Q2 grade; and G1 to G3 beans scoring below 80 are downgraded to G3 grade.

Ultimately, Q1 and Q2 are classified as Specialty Grade, suitable for export to the international premium market; while G4 to G9 remain under their original grading and are grouped with G3 as Commercial Grade, used for commercial export purposes.

Yirgacheffe coffee of the highest G1 grade, such as the commonly seen Guji Dingding and Red Cherry, typically exhibits clear notes of citrus, floral, fruit tea, and nuts, with a bright and refreshing mouthfeel, soft acidity with a touch of sweetness, and very low bitterness. It is highly suitable for brewing via pour over, cold brew, French press, and even moka pot, making it a top choice for many coffee beginners and advanced enthusiasts alike.

People often ask: “Are Arabica coffee beans necessarily expensive?” The answer is no. The price range for Arabica coffee beans is wide. High-quality Arabica, especially specialty beans that have achieved G1 or Q1 grades, are naturally more expensive due to limited production, high processing costs, and superior flavor. However, lower-quality Arabica beans, particularly those of commercial grade or with high defect rates, are relatively more affordable. Therefore, the coffee bean grading system is designed to help consumers distinguish quality differences and make appropriate choices.

Fun fact: The “acidity” in coffee is often misunderstood as a negative trait, but just like acidity in wine, good acidity can bring out layers and vibrancy—it’s said that “sweetness is easy, great acidity is rare.” Also note that as coffee cools, acidity often becomes more pronounced, which is why many people find cooled coffee to taste more sour.

The above content is compiled by CoffeeHunters, a coffee news website.