The anti-static technology will work best for about 60 grinding cycles before it needs to be cleaned to continue to operate at its peak performance.  To clean it, remove the catch cup, and use the Fellow cleaning brush (or another cleaning brush such as a clean makeup brush or a clean paint brush) and “swipe” around the inside of the exit chute (where the coffee grounds come out). This will clean the chute and help the anti-static mechanisms work well.  Watch Nick T., VP of Hardware and R&D at Fellow and Certified Q Grader, walk through how to clean and maintain Opus here.