How To Clean A Stove- Salt, baking soda, and white vinegar. I did this and let it soak on there overnight.cleanest gas stove top EVER! No more buying all these products for them never to work, I found the trick!
The Complete Guide to Imperfect Homemaking: How to Clean Cooked-On Gunk from a Stove Top: Mix some baking soda in a small bowl with enough hydrogen peroxide to make a paste. Use a scrubby sponge and the gunk comes off surprisingly easily!
Clean Your Gas Cook Top Burner Grates from Food.com: I had tried most everything to clean the porcelain enamel grates on my cooktop with little success. Then I read the use & care guide that came with the cooktop. How simple is this! NOTE: I used a plastic trash bag with a tie top. When entering this "recipe", a plastic bag wasn't recognized but a ziploc was. Ignore that "ingredient" ;-)
No Scrub Method for cleaning stove burner grates: Seal in a plastic bag with a little ammonia (doesn't need to cover grates). Let sit overnight and the ammonia fumes will break down burnt on grease, etc. Next day, wipe clean with sponge.