If you forget to clean your grill properly after cooking meat all day on the wire rack, you’ll be faced with tough-to-remove stains that can’t simply be burnt off. The best way to remove this residue is with a Brillo pad and serious elbow grease.
However, if a certain amount of time has passed and your grilling surface is beginning to rust, you may as well cut your losses and order a new grilling surface altogether. We would also recommend using a stiff-bristled grill brush on the grilling surface before, during, and after you cook your meats.
If you do not have one of these brushes, you can use a crumpled piece of aluminum foil gripped between your tongs.