Welcome to CoffeeSnobs Dean
Sure could.Originally Posted by 2524202F1E7072410 link=1332389671/0#0 date=1332389671
If you didnt change anything else and have 10C air temp change... and assuming that the ambient temperature is similar then clean your flue/exhaust.
Build-up on that side of the roaster will slow the exhausting air and add more heat thus changing the profile of the roast through the duration.
(with a greater change at the end)