Development of a roasted coffee beans cooler attached to coffee roaster

Abstract

STEAM education, which was born in the United States in the 2000s, is spreading in various countries and regions. In recent years, STEAM education initiatives have been spreading in Japan. We have developed a coffee roaster as a teaching material for STEAM education. Immediately after roasting, the coffee beans have a high temperature of about 230°C, so if they are left at room temperature, the roasted beans will be baked inside the beans, and the roasting condition cannot be finished as they should be. Therefore, coffee beans immediately after roasting require a cooling machine that rapidly cools them by applying cold air. In this study, we summarize the contents of the development of a cooling machine for roasted beans attached to a self-made coffee roaster.