Can't keep the temperature down on my weber!
A few months ago, I cleaned my weber ots after it had accumulated lots of grease from drippings of slow cooked ribs. It was quite a workout, but I finally got the gunk out. Maybe I shouldn't have cleaned it because now when I slow cook, I have to keep the bottom vent all the way closed just to keep it at 250-275. Ideally, I like to cook at 225 for ribs. Could I have bent the vent blades while cleaning? Or will it cook cooler after a few more cooks? Thanks for any help.