Please see the General Cleaning instructions in the Safety Manual.
If you start to notice that there is more grind retention (grinds stuck in the exit chute) than when you first used the unit, don’t worry! This is normal. We found during our testing that the grinder will run for about 60 cycles before it needs to be cleaned to operate at its best performance.
To clean it, remove the catch cup, and use the provided 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 working well.
Remember: The cleaner you keep your grinder, the better the anti static mechanisms are going to work. This will help reduce the amount of coffee retained in the grinder.