Kurume (primary), 74110, 74112, Walichu

The coffee landscape of Ethiopia is defined by unparalleled genetic diversity, where thousands of distinct cultivars grow in wild forests and smallholder farms. While the term 'heirloom' is frequently used to describe these indigenous plants, it is an umbrella term rather than a specific variety. In contrast, designations like 74110 and 74112 represent formal, scientific selections made by the Jimma Agricultural Research Center (JARC) in the 1970s to preserve this diversity while improving agricultural outcomes for farmers.

The '74' series, including 74110 and 74112, originated from wild Arabica populations in the Metu-Bishari forest. Researchers identified these specific accessions in 1974, seeking to isolate plants that combined the legendary cup quality of Ethiopian coffee with resistance to Coffee Berry Disease (CBD). These are not hybrids created through cross-breeding with other species like Robusta; rather, they are pure-line selections derived directly from Ethiopia’s native genetic stock, ensuring they retain the complex, nuanced characteristics of wild Arabica.

In the field, these JARC selections are valued for their ability to thrive at high altitudes, often exceeding 2,000 meters. The slow maturation of cherries at these elevations allows for the accumulation of complex sugars and aromatic compounds. Because they were selected for their robustness, they offer producers a more reliable yield compared to undifferentiated wild mixtures, providing a critical balance between agricultural stability and the high-prestige flavor profiles demanded by the specialty coffee market.

Kurume and Walichu, while often grouped with these selections in specialty coffee discourse, represent distinct landrace varieties that have gained prominence for their specific sensory attributes. Kurume is particularly celebrated for its small bean size and intense, delicate floral notes, often associated with the Yirgacheffe region. These varieties are frequently found in the same high-altitude growing regions as the JARC selections, and they are often processed using natural or washed methods to highlight their inherent sweetness and bright, berry-like acidity.

For the roaster and the drinker, these varieties represent the pinnacle of Ethiopian coffee. The 74110 and 74112 cultivars are increasingly specified on packaging, signaling to consumers that the coffee has been sourced with a focus on traceability and quality control. Their flavor profiles are consistently described as clean, floral, and fruit-forward, with notes ranging from peach blossom and concord grape to bright citrus, reflecting the unique terroir of their respective growing regions.

Producers choose to plant these varieties because they offer a pathway to higher market premiums. By moving away from generic 'heirloom' mixes toward identified, high-performing cultivars, farmers can better manage their crops and provide roasters with consistent, high-scoring lots. This shift toward variety-specific production is a significant evolution in the Ethiopian coffee industry, bridging the gap between ancient forest genetics and modern specialty coffee standards.

Today, the story of these varieties stands at the intersection of conservation and commerce. As climate change and disease pressures mount, the genetic heritage preserved in these selections becomes increasingly vital. By documenting and cultivating specific varieties like Kurume, Walichu, and the JARC 74-series, the coffee industry is not only securing the future of production but also deepening the global appreciation for the vast, untapped potential of Ethiopia’s original coffee forests.