[기술논문] 고효율 커피 로스팅기 개발

We developed a high thermal efficiency and eco-friendly coffee roaster. In coffee roasting machine, the core element is a roasting drum. Most of the coffee roasting drum is a flat cylindrical barrel. We got the idea from the traditional shape of cereal puffing machine. This is well known to be very thermal efficiency type of oak barrel shape in heating system. So we designed oak barrel shaped roasting drum to be available within 10 minutes of roasting time with 3kg of coffee beans. With our developed coffee roasting machine, the heating speed of roasting process is very fast, and the roasting of coffee beans can be quickly finished. We experimented with other coffee roasting machine of the same amount of roasting capacity. The results were outstanding in roasting time and the quality of roasting. In spite of smaller fuel consumption, the roasting time was more shorter than any other type of roasting machine.