Some customers can have issues with clogging when grinding herbs too fine or not cleaning the product regularly enough. To prevent your Eject-a-Bowl from clogging, we recommend cleaning the product after each use. Like other smoking devices, residue buildup can cause clogging. To unclog it, remove the grommet and spring and use alcohol or any alcohol-based cleaning agent. We recommend using a poker tool to clear severe residue buildup on the Original Eject-a-Bowl. Do not use a poker tool on the screen of the King Size Eject-a-Bowl.