Ammonia to clean stove grates. Everyone who owns a gas stove, pin this! It works! Mine were absolutely disgusting and I tried everything to clean them. It was so gross how much came off! Definitely the best stove grate cleaner ever.
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.
Miracle Cleaner into a spray bottle mix: 2 oz. white vinegar and 10 oz. water, This is powerful stuff! If your shower has a bad build-up of soap scum and crud it may take a time or two to get that shine.
How to Clean & Oil the Cast Iron Burner Caps on Stove Grates