Just got back a little bit ago from picking up a Lang 48 patio that I scored an amazing deal on from Craigslist. It was purchased new in 2009 and had only been used a few times and is in excellent condition. I haven't fired it up yet, but the only problem with it so far is that the grates have a bit of rust on them. I know this isn't a big deal, but does anyone know the best way to clean the rust before I re-season the smoker and get a fresh coat of oil on everything?