From Waste to Value: Diagnosing Ethiopia's Coffee By-Product Circular Economy Commercialization Gap
DOI:
https://doi.org/10.15294/joct.v3i2.62493Abstract
Coffee husk, pulp, and spent grounds are a large, underused waste stream with established circular-economy conversion pathways (biochar via pyrolysis, biogas via anaerobic fermentation, compost, and cascara), yet Ethiopia, among the world's five largest coffee producers, generates an estimated 192,000 metric tons of coffee husk waste annually with almost none valorized commercially. Ethiopian universities have validated these conversion technologies, yet little evidence shows this becoming a functioning circular-economy industry. Countries producing a fraction of Ethiopia's coffee, and one producing none, have already built profitable by-product sectors using the same technologies. This paper argues Ethiopia's constraint is commercial rather than technological: the country clears scientific research and technology validation but stalls before commercial feasibility and investment. Testing production scale, scientific capacity, and market demand against international literature, Ethiopian research, and interviews with five Ethiopian coffee-sector professionals, this paper eliminates each as a sufficient explanation and identifies a missing institutional bridge between research and commercialisation as the most probable constraint. Ethiopia's recent investment reforms, plastics restrictions, and rising demand for biodegradable materials have converged into a favourable commercialisation window. The paper contributes a diagnostic framework for scaling circular-economy waste valorization, connecting university research, industry perspectives, and policy timing.
Keywords: biochar; circular economy; coffee by-products; technology commercialization; waste valorization
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Copyright (c) 2026 Soliyana Afework Gebreananya (Author)
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