This is a new machine so no coffee dust should have interference

Dust built up around the lid and edges that made it less than "easy" to clean the coffee dust

I am totally changing my original review which said this grinder was excellent other than you need to clear the coffee dust out of the engagement latch from time to time with compressed air.

After grinding the beans, I emptied the ground coffee into the transparent cap where some of the "coffee dust" settled under the push-button control.