Keep your stovetop grates clean so they can heat properly. If your grates are especially dirty with stubborn, cooked-on stains, pour a 1/4 cup of ammonia into a large gallon size freezer bag along with the grates and seal the bag. Don’t worry about the ammonia covering the gate, you only want to expose the grates to fumes. Leave the bag in the sink overnight and in the morning, any residue should wipe off easily with a sponge.
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