A processing system comprising at least one cylindrical tumbler having a base portion with one or more sidewalls extending upward, where the tumbler tumbles plant material placed inside, and where the tumbled material is trimmed within the tumbler. A motor is in communication with a power source and is mechanically coupled to the base of the tumbler, so that the motor rotates the tumbler. The one or more sidewalls have a plurality of apertures configured to selectively allow one or more plant byproducts to pass through.