Fill a bucket with 1 quart of hot water. Add 1/4 cup of ammonia to the hot water.
Wet a clean cloth with the ammonia solution. Wring out the excess moisture.
Place the ammonia-dampened cloth directly over the grime on your stove top. Allow the cloth to remain on the surface for 15 minutes to soften the stain matter.
Remove the cloth from the surface of your stove top. Gently scrub the grimy stain with a nylon mesh sponge to remove as much as possible.
Scrape stuck- or burned-on grime with a razor-edged scraper. Sprinkle baking soda onto the sponge to remove any last traces of grime.
Clean the surface of your cooktop by wiping it off with the diluted ammonia solution. Dry the surface with another cloth.