@CowGirl:I think water is the main problem and maybe the lack of grease on the grills and inside of the drum.
This drum was standing uncovered during this Phall,remember that I live in Holland so it rains alot.
Because of some small gaps on top of the drum water can easily drip inside.
I also don't use the Midi UDS alot because of a small airleak that I still need to Phix but I don't have mold in this one because this one has a rooPh above it's head and is seasoned quite well.
@Biggy:dang...my TG wasn't neglected,your Brinkman is Neglected!!!
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Dutch BBQ Champion 2011 - 2012*
Dutch BBQ Champion 2013 Low 'n Slow