Biofuels are alternatives to fossil fuels to ensure energy security and mitigate climate change.rnCurrently, most biofuel is in the form of bioethanol generated from starch or sugar. Conversionrnof cellulosic biomass, which is both abundant and renewable, to bioethanol is a promisingrnalternative.rnThe objective of this work was to evaluate the feasibility of ethanol production and optimizationrnfrom coffee pulp by using commercial bakery yeast, i.e., S. cereviciae. To conduct this study,rnfermentation was held at temperature 30 Â°C and pH 5, and treated using different acidrnconcentrations and residence times. Coffee pulp was hydrolyzed by refluxing, a solid to liquidrnratio of 1:10, using dilute sulfuric acid (1, 2 and 4 %) and distilled water at hydrolysis time of 1,rn2, 4, 6 and 10 hours keeping boiling temperature. 90 % maximum total sugar concentration wasrnobtained at 4 h acid free hydrolysis. Based on these hydrolysis results, fermentation process wasrnperformed.rnIn the process, it was observed that ethanol concentration decreased with an increase in acidrnconcentration, hydrolysis time and fermentation time. The maximum result was obtained withrndistilled water hydrolysis for 4 h and 24 h fermentation. Under these conditions maximumrnethanol concentration production was 7.398 g/L, a satisfactory result as compared with literaturerndata. The result indicated that being available in plentiful amounts and non-edible material,rncoffee pulp will be potential feedstock for bioethanol production in Ethiopia.