Turn all the gas adjustment knobs to the "High" setting.
Light the gas burners either with a match or -- if your grill is equipped with one -- the electric starter button.
Wait a few minutes for the grill's temperature to rise, then scrape away the grime from the grates with your wire brush while the flames are on. Be sure to clean between the grates as well, rather than just brushing along the top.
Turn off the grill once you have finished cleaning the grates.
Things You Will Need
- Long-handled wire brush
- Be sure to clean your grill after every use to ensure the best results.