Ziploc Bags See post for options if your grates are larger than gallon size
Baking Sheet
Mask Optional, but highly recommended
Gloves
Non-Scratch Scour Pad
Dish Soap
Instructions
Remove burner grates from the stove top
Place each one in a separate Ziploc Bag
Add 1/4 cup ammonia to each bag and seal
Place the bags on a baking sheet to catch any leaks that may occur
Allow the grates to sit overnight
Prior to removing the grates from the bags, open windows to allow for good ventilation. It is also strongly recommended that you wear a mask and gloves. With that in mind, remove the grates from the bags and rinse them under warm water.
Use a non-scratch scour pad with a little dish soap to gently scrub off any remaining grease and grime
Thoroughly rinse and dry the grates prior to returning them to the stove top