I occasionally wipe down the inside with Krud Cutter and rinse with water and vinegar, but only when it's a messy cook. No harsh smells left . I use the balled up foil , works better than any brush for Traeger and Weber,
I vacuum the fire pot and lower cavity about once a week. I also wipe the grease trough and channel to bucket. The Ironwood has been easier to recover the drip pan than the previous . It takes about 5 minutes to refoil the pan.
There can be a buildup of creosote around the exhaust . A wipe around the exhaust and door is always a good idea.