I will sometimes read where people refer to cleaning their smoker. I ask, why? I never clean the inside of it. the only think I would do is pour out the liquid grease that gathers in the bottom tray of my MES and leave the rest of the inside of it untouched. I dont ever see mold or anything funky in there. Its just black and smells like sweet smoke. I figure it helps impart flavor. Are there some of you who also dont clean your smoker or am I the only one?