I am a coffee roaster for Gene Cafe. Genesis has developed its unique "3D Mixing System" through years of accumulated coffee bean roasting technology, research and development, and performance testing. The "Coffee Bean Roaster" equipped with this technology, a home roasting machine that employs a 3D rotation method, is sold in over 30 countries worldwide. The three-dimensional agitation of roasting with hot air up to 250°C fully brings out the deep flavor and rich aroma of the green beans. The heater temperature, air volume, and even the rotation speed of the chamber are managed by a built-in computer, resulting in excellent reproducibility of taste. Full automatic roasting from roasting to cooling, you can easily enjoy your own "homemade roasted coffee" simply by setting the "temperature" and "time" for the roasting settings. The chamber stand is not included. There is some scorching inside the chamber. After replacing the cushion between the heat source and the chamber with a new one, I roasted about 30 batches. It can be used without any problems.