Found my first coffee roaster while cleaning the basement. This was useful to demonstrate the changes coffee goes through in roasting before we were roasting our own. It also had some time roasting samples, but the control on this is limited and consistency is bad. Eventually I was able to do better roasting samples in a production roaster (basically roasting by sound as that's so far below minimum batch size that visuals and instruments are unavailable). These days I have something appropriate.