I just wash the grills, bowl and empty the ash. When you cover it leave one bottom vent and the top vent open. They say this prevents mold.
Weber WSM, Weber GA, Weber Spirit S-320, Weber 22" OTG
Charbroil Oilless Turkey Fryer
Wife LuzziAnn 1956 model.
Maverick ET-732, Superfast LSU Purple Thermapen & ThermaPop, Party Q