Discovery Carbon Off Aerosol Degreaser 19 Oz.
GET RID OF STUBBORN CARBON BUILD UP FASTCARBON-OFF!® is a powerful gel that dissolves carbon buildup from metal
surfaces. Spray or brush on, let set 15 minutes to overnight (depending
on the amount of buildup to be removed), then rinse with cold water and a brush or scrubbing pad. Now that's quick and easy!