Ethiopia is widely recognized as the birthplace of coffee. The storied coffee origin even has its own coffee legends and mythology. The story of coffee begins in Ethiopia’s lush highlands, where the coffee plant was first discovered. According to legend, an Ethiopian goat herder named Kaldi discovered coffee in the 9th century. His discovery reached local monks, who brewed a beverage that helped them stay awake throughout long nights of prayer.
Ethiopia’s rich coffee heritage stretches back more than a millennium, making it not just the birthplace of coffee but also home to some of the world’s most sought-after coffee beans. While Ethiopia only produces 3-4% of the world’s coffee supply, it has an outsized reputation. The variety and character of the coffee that comes from Ethiopia is astounding. Ethiopia is famed for its “fruit bombs” and for expressing a wide assortment of distinctive floral notes and sweet flavors.
Coffee is as important to Ethiopia’s economy as it is to Ethiopian culture. Instead of Kaldi the goatherder, the Oromo sky god Waaqa brought forth a new plant from the earth with his tears that were shed over the wrongful death of a loyal servant. People in Ethiopia have been consistently drinking coffee longer than anyone else on the planet. Ethiopian coffee ceremonies are elaborate rituals that encapsulate the journey of a coffee bean from unroasted coffee to brewed beverage. Ethiopia’s number one export is coffee, which makes up over one-third of the country’s export revenue.
Ancient landrace varieties dominate the smallholder coffee gardens that are also generally organic, tended by farmers who intercrop food crops to maximize the potential of this region’s fertile soil. Around six to ten thousand varieties still grow wild among the mountainous forests of Ethiopia. The difference between heirloom and landrace, although they are often used interchangeably, is the degree of human intervention in the development of the plant. Heirloom and landrace trees are both associated with a specific region, but heirlooms have been traditionally cultivated and handed down throughout generations.
Most Ethiopian coffees grow at high altitudes, which results in dense beans with intense flavors and aromas. The high elevation of Ethiopia (1,500+ meters) qualify all Ethiopian green coffees as Strictly High Grown (SHG) / Strictly Hard Bean (SHB).
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Ethiopian Specialty Coffee is found on the Horn of Africa, a land of stunning scenery and split by the Great Rift Valley. The Ethiopian Highlands are the largest continuous high-altitude area in all of Africa, much of it being above 1,500 meters (4,921 feet). Ethiopia is the largest coffee producer in Africa and third in the world in terms of Arabica production. Ethiopia is recognized as the birthplace of coffee and produces some of the most complex and exotic coffees in the world. From growing to brewing, Ethiopian coffee traditions are virtually untouched and still remain at the heart of the culture. Coffee drinking has been part of Ethiopian life for centuries-an elaborate ceremony which includes roasting, grinding and brewing the coffee, is still a staple of social life today.
Ethiopia boasts over 10,000 coffee bean varieties that are specific to different regions throughout the country. Ethiopia produces a hard, dense, small bean that has more sugar and flavor because of its physical characteristics.
Ethiopian coffee is typically sold by region - Sidamo, Yirgacheffe, Harrar, etc - as a single origin, though the lowest priced ones can be incorporated into blends. Generally, consumers want to buy from a supplier who can fresh roast the coffee, and order whole bean.
Ethiopian coffee is cherished by coffee roasters and coffee drinkers across the globe, and for good reason!
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Key Growing Regions
Most of the green coffee produced in Ethiopia comes from three trademarked regions: Sidama, Yirgacheffe, and Harrar. The cup profiles from these regions vary widely, and they’re often divided into sub-regions with distinct characteristics. As of 2023, Ethiopia is divided into 12 regional states and two chartered cities (Addis Ababa and Dire Dawa).
Yirgacheffe
Yirgachefe is a woreda in the Southern Nations, Nationalities, and Peoples’ Region (SNNPR) that needs little introduction. With its high altitude, mild climate and ample rainfall, Yirgacheffe has ideal conditions for Arabica production. Yirgacheffe Ethiopian coffee beans are renowned for their floral and citrus notes, often described as having jasmine, bergamot, and lemon undertones. Look for fruit-forward, sweet coffees that are always a favorite among coffee drinkers around the world. Yirgacheffe is also widely known for its distinct floral tones, intensely complex flavors, and bright acidity.
Sidama
Sidamo (which has been called Sidamo, an error that dates back to the 1880s) is famous for high-elevation coffee. Elevations range from 1,550 to 2,200masl, and the microclimate experiences ample rainfall at optimal temperatures. The Sidamo region produces Ethiopian coffee known for its complex flavor profile, featuring wine-like acidity and full-bodied taste. This southern region is known for its highly valued coffee beans. It is the main coffee-producing area in the country. A medium roast provides the best balance of acidity, flavors and body.
Harrar
Harrar is a historical region that was associated with the highest quality of Ethiopian coffee available in the 19th century. Harrar coffee is generally sourced from wild native trees and dry processed. In the cup you’ll find intense flavors and fruity acidity. It’s common to find Harrar coffee in espresso blends to lend deep fruity notes. The eastern region of Ethiopia, best known for its dry processed (unwashed; natural) coffees, produces the Harrars with their fruity or winey tones, complex blueberry notes, bright (sometimes brilliant) acidity, and with a medium to heavy body that has a dry edge to it.
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Other Regions
A more specific categorization divides Ethiopia into nine distinct growing regions: Yirgacheffes, Sidamo, Harrar, Bebeka, Teppi, Limu, Djimma, Illubabor, Lekempti, Wellega and Gimbi.
- Limu: Limu might be lesser known, but altitudes of 1,100 to 1,900masl in the highlands lend themselves to excellent coffees. A washed bean that produces a low-acidic, well-balanced coffee that’s both sweet and vibrant.
- Jimma/Djimma: Djimmah coffee, grown in the Illubabor and Kaffa regions at elevations from 4,400 to 6,000 feet above sea level, is an excellent, low-acid Ethiopian coffee when it is wet processed (washed). Jimma/Djimma coffee typically expresses a low acidity and distinct spicy flavor, complemented by a pleasant sweetness.
- Guji: Guji is a small zone in the south of Ethiopia, located in the Oromia region and named after the Guji tribe of the Oromo people, one of the largest ethnic groups in the country. Guji, a standout zone in the Oromia region, is also an excellent location for coffee production. Centuries after coffee was discovered, farmers in Guji still follow traditional growing methods that complement the incredibly fertile soil there. Because there is so much nutrition in the land, coffee is grown organically, although most are not certified as such.
Limu and Djimmah are frequently distinguished by being from Western Ethiopia, with Limu being wet processed and Djimmah being dry processed. Ethiopian Ghimbi coffees are a wet-processed (washed) coffee varietal grown in the western part of Ethiopia. Ghimbi coffee is known to have a heavier body than Ethiopian Harrar coffees, and is also more balanced with a longer lasting body. Grown in the Ghimbi and Wollega regions of Ethiopia at elevations between 4,900 feet and 5,900 feet above sea level, Lekempti coffee is known for its pleasant acidity and healthy body reminiscent of Ethiopian Harrar Longberry coffee.
Coffee Grading and Processing
Ethiopia’s coffee grading system has been in place since the 1960s, with updates over the years. The grade is the combined result of physical bean and cup qualities, including altitude, imperfections, and flavor. Ethiopia produces high quantities of both natural and washed coffees and the grading scale differs slightly by process.
How is coffee graded in Ethiopia? In Ethiopia, coffee is graded on a scale from Grades 1 to 9, with Grades 1 and 2 signifying top-tier specialty coffee, assessed through both physical attributes-such as size, shape, color, and defects-and cup profile, focusing on aroma, flavor, acidity, and body. Coffees are further classified by their region of origin, such as Sidama, Guji, or Yirgacheffe, whose unique terroirs greatly influence flavor profiles. Processing methods, such as washed or natural, also play a role in shaping the coffee's final characteristics and quality grade.
Ethiopian coffee beans undergo two different processes, natural processing and wet processing (also called washed processing). Natural processing, where coffee cherries are dried in the sun, creates Ethiopian coffee beans with intense fruity flavors and fuller bodies. The majority of coffee from Ethiopia is natural processed, which requires fewer resources and minimal infrastructure. Only the ripest coffee cherries are harvested and dried whole, usually on patios or raised beds in the sun, allowing for some fermentation. After achieving optimal moisture levels, the cherries are hulled to separate the fruit from the beans. The natural process results in sweet, intense flavors with a strong fruit-forward profile.
Washed beans boast jasmine or lemongrass characteristics with a lighter and drier body. Washing is a newer process that is constantly evolving as new equipment comes on the scene.
Genuine Origin will usually stock coffees from Yirgacheffe, Sidama, and Guji. Roasters can usually find a selection of natural and washed process coffees, as well as a several grades. While we are constantly searching for the coveted blueberry notes in Ethiopia naturals, we are seeing them less and less. However, we have started to see Ethiopian coffee producers venturing into anaerobic processing.
Physicochemical Characteristics and Roasting
This study aimed to investigate the physicochemical characteristics of Ethiopian Coffea arabica cv. Heirloom coffee extracts with various roasting conditions. Green coffee beans were roasted at four different conditions (Light-medium, Medium, Moderately dark, and Very dark) and used to extract espresso and drip coffee.
Key Findings:
- Moisture Content:Decreased as the roasting degree increased.
- Crude Fat and Ash:Contents were lower in Light-medium roasted coffee beans than in green coffee beans but increased as the roasting degree increased.
- Color:The values of lightness (L*), redness (a*), yellowness (b*), and browning index of coffee extracts were decreased as the roasting degree increased.
- Total Dissolved Solids (TDS):In espresso coffee, TDS increased with increasing roasting degree but decreased in drip coffee.
The changes in the contents of the moisture, crude protein, crude fat, ash, and carbohydrates in coffee beans during roasting are presented in Table 1. As was expected, the moisture content was decreased from 8.64 g/100 g in green coffee beans to 0.89 g/100 g in the Very dark roasted coffee beans as the roasting degree increased. The roasting did not affect the content of crude protein significantly. The crude fat content in Light-medium roasted coffee beans was significantly lower than that of the green coffee beans, however, the crude fat content was increased again as the roasting degree increased. The ash content in Light-medium roasted coffee beans was slightly lower than that of the green coffee beans, however, the content of ash increased as the roasting degree increased. The content of carbohydrates was the lowest in the green coffee beans. Light-medium, Medium, and Moderately dark roasting increased the content of carbohydrates.
| Component | Green Coffee Beans | Light-Medium Roasted | Medium Roasted | Moderately Dark Roasted | Very Dark Roasted |
|---|---|---|---|---|---|
| Moisture Content (g/100g) | 8.64 | 2.12 | 1.45 | 1.12 | 0.89 |
| Crude Protein Content | *No significant change reported* | *No significant change reported* | *No significant change reported* | *No significant change reported* | *No significant change reported* |
| Crude Fat Content | *Reported lower than green beans* | *Significantly lower than green beans* | *Increased as roasting degree increased* | *Increased as roasting degree increased* | *Increased as roasting degree increased* |
| Ash Content | *Reported as 3-4.5%* | *Slightly lower than green beans* | *Increased as roasting degree increased* | *Increased as roasting degree increased* | *Increased as roasting degree increased* |
| Carbohydrates | *Lowest in green beans* | *Increased with roasting* | *Increased with roasting* | *Increased with roasting* | *Data Not Available* |
Color is one of the most critical appearance attributes of coffee, as it influences consumer acceptability. Besides consumer acceptability, the degree of color change is used for roasting process control. In coffee beans, the parameter L*, which shows lightness, was the highest in green coffee beans and decreased progressively with the roasting degrees increased. The parameter a*, which indicates redness, was the lowest in green coffee beans and steeply increased in Light-medium roasted coffee beans. However, the parameter was decreased significantly as the roasting degree increased. The parameter b*, showing the degree of yellowness, was the highest in green coffee beans and tended to be decreased as roasting degree increased, to a similar extent to the parameter a*. Browning index, representing the purity of brown color, was increased in the order of green coffee beans, Light-medium, and Medium as the roasting degree increased, but gradually decreased in the Moderately dark and Very dark roasted coffee beans.
