An Exploratory Study Factor Analysis for Roasting Machine Development and Its Impact on Robusta Coffee Product Quality

Abstract

The lack of effective approaches used by coffee roasting machine developers is a problem gap in this study. Machines need to be engineered to be easy for the coffee industry business actors to use to create quality coffee drinks. The approach of this study is exploratory to find factors that shape the effectiveness of roasting machine engineering. This qualitative study explores the perspectives of 31 coffee shop owners in Indonesia who use roasting machines in their serving process. This study provides design implications for roasting machine developer manufacturers to design machines that align with user expectations that represent the market. The study's results provide empirical evidence that there are four main factors for machine manufacturers in developing coffee roasting machines: temperature management, building automatic control, stirring speed, heat distribution and machine capacity working on various coffee bean materials. This study has practical implications for machine manufacturer managers to engineer the design, automation and algorithms injected into the roasting machine. This study fills the body of knowledge in the coffee roasting machine engineering domain.