I own a
Masterbuilt 30 Inch Smoker with a Window in the door. I always wrap my grease tray, the bottom, top only with some wide Tin Foil and poke a hole where the corresponding hole in the tray is. I also cover the upper water tray, both sides with Tin Foil. I then a narrow tin foil sheet to put over the smoke box, the area just above where you ash tray sits when inserted. It wraps around the back, being careful not to let it touch the heating coils and wraps over about 2 inches past the ash tray handle. Doing all this makes for very easy clean up. One other hint I learned from
Masterbuilt themselves, no part of a
Masterbuilt smoker is Dishwasher safe, so never put the trays, or any other part of your smoker in a dishwasher.
As far as cleaning the box, i use a pail, put some warm water in it, some Dawn dish soap and wipe out the cabinet with a dish rag, to remove chunks and grease and the door, because it has door, I clean it real good.