Dimtu Washing Station — Shakiso

The Dimtu Washing Station is a central pillar of the Dimtu Coffee Industry, a private enterprise established in 2007 to process specialty coffee in the Shakiso district of Ethiopia’s Guji zone. Situated at high elevations ranging from 1,800 to 2,200 meters above sea level, the station benefits from the region's fertile red loamy soil and ideal climate, which are essential for producing the high-density beans characteristic of Guji specialty coffee. The facility serves as a vital link between the local landscape and the global specialty market, operating with a focus on both quality control and sustainable agricultural practices.

At the heart of the operation is a collaborative model involving 798 certified organic smallholder farmers. These farmers, located in the Tero and Mancity areas of Shakiso, provide the coffee cherries that are processed at the Dimtu station. In addition to these outgrowers, the company manages a 151-hectare semi-forest farm, which allows for direct oversight of cultivation practices. This dual approach—combining estate-grown coffee with a robust outgrower network—ensures a consistent supply of high-quality raw material for the station's processing lines.

The station is equipped to handle both fully washed and natural processing methods, allowing for a diverse range of flavor profiles. In the washed process, cherries undergo fermentation for 36 to 48 hours before being dried on raised beds, a method that highlights the clean, bright acidity and floral notes often associated with Ethiopian coffees. Conversely, the natural process involves sun-drying the whole cherry, which results in the intense, berry-forward, and tropical fruit characteristics that have made Guji coffees highly sought after by specialty roasters worldwide.

Varietal diversity is a hallmark of the coffee processed at Dimtu. The station utilizes a mix of JARC (Jimma Agricultural Research Center) varieties and traditional local landraces. This combination of genetically diverse heirloom plants, nurtured by smallholders who often use organic fertilizers and maintain natural vegetation buffers, contributes to the complex cup profiles that frequently score above 88 points in professional cupping assessments.

Beyond production, Dimtu Coffee Industry has invested in infrastructure to ensure long-term viability, including a nursery that has produced over 150,000 seedlings to support future growth and farm renewal. The company holds multiple certifications, including Organic (EU, NOP, and JAS) and Rainforest Alliance (RFA), reflecting a commitment to environmental stewardship and social responsibility. These certifications provide transparency and assurance to international buyers regarding the ethical standards of the supply chain.

For the roaster and the consumer, the Dimtu Washing Station represents the modern evolution of Ethiopian coffee traceability. While the country’s coffee industry has historically been opaque, the rise of private washing stations like Dimtu has enabled more direct relationships and clearer provenance. By focusing on high-quality processing and maintaining rigorous standards, the station has helped elevate the profile of Shakiso as a distinct and premium sub-region within the broader Guji zone, ensuring that the unique terroir of the area is preserved from the farm gate to the final cup.