I think there are two kinds of people on Smoker Cleaning, (Kinda like cooking a brisket Fat side up or Fat side down). Cleaning your smoker is of course a personal choice. All I do is when I am finished smoking is get the water hose with the spray nozzle, and not to much pressure, I spray out the inside of my smoker and grates. No Pressure Washer, No Chemicals just water. All that does is create steam that gets rid of the extra grease and creosote that you don't want or need. You can raise the lid on my smoker anytime and it smells wonderful, just like it should. I did say that i have a reverse flow, I remove my bottom plates (I have two) and scrape and clean all the stuff that accumulates under there over time. I spray this out also. I have found that by keeping this part clean lets my smoker comes up to temp faster and helps in the heat, smoke and air flow.I do use a wire brush on my grates. Also and when I use my weed burner to start my fire I go over the grates and inside. Took my smoker apart earlier this week and gave it a good cleaning. I noticed yesterday when I walked by I caught that great smell, so spraying it out does not get rid of that seasoning and smell. Cooking Brisket and Beef Ribs as am I writing this.