If you don’t clean your smoker often, moisture, grease, and oil will build up, which is a maggot’s heaven. You can use the same steps for getting rid of mold to get rid of maggots.
As an extra measure, you can combine bleach, detergent, and hot water in a spray bottle. Use one cup of water, one tablespoon of detergent, and one tablespoon of bleach.
Spray the smoker’s interior and let it sit for 15 minutes before scrubbing with a damp cloth. Heat the smoker back up to the maximum temperature for an hour to sanitize the chamber.