You know that's what happened to my Smoke Pistol, got so caked up you could not clean it any more. I have a Smoke Daddy now and just use a wire brush to keep it clean.
Weber Spirit E-310 Gasser
1 - Big Green Egg - Large
2 - 22.5 Weber Kettles
2 - 18.5 Weber Kettle
2 - Super FAST, Super ACCURATE Green Thermapen1 splashproof)
"A good friend will come and bail you out of jail, your best friend will be sitting right beside you on the bench saying "What a Ride!" WooHoo