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How to clean & oil the cast iron burner caps on stove grates

Updated February 21, 2017

Many commercial and home gas stoves have cast iron burner caps and grates. Iron used in cooking needs to stay seasoned. If left unclean for too long, the caps can become caked with an unsightly build-up of grease. An over-accumulation of grease can smoke when the burner is on, becoming a potential fire starter. The caps, like the grates, are typically removable, making for easy cleaning. After cleaning caps, season them lightly to ensure a glossy appearance and enough lubrication to prevent rust.

Remove the iron caps from the centres of the burners. Set the caps on a surface lined with newspaper.

Knock off any crumbly, stuck-on bits from the caps, using a wire brush.

Spray the caps with biodegradable oven cleaner until completely coated. Leave the oven cleaner to soak for a few minutes. Wipe the caps off with a sponge dampened in hot water.

Soak the caps in a solution of hot water and dish soap and scrub them under water with a scrub pad to remove any remaining gunk.

Dry the caps.

Pour a dollop of vegetable oil on a paper towel and rub the oil onto the caps. Apply vegetable oil liberally, massaging it into the iron.

Wipe off all excess vegetable oil with a dry paper towel.

Replace the caps. The caps may smoke for just a moment when first lighting a burner.

Things You'll Need

  • Newspaper
  • Wire brush
  • Biodegradable oven cleaner
  • Sponge
  • Dish soap
  • Scrub pad
  • Vegetable oil
  • Paper towels
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About the Author

Mason Howard is an artist and writer in Minneapolis. Howard's work has been published in the "Creative Quarterly Journal of Art & Design" and "New American Paintings." He has also written for art exhibition catalogs and publications. Howard's recent writing includes covering popular culture, home improvement, cooking, health and fitness. He received his Master of Fine Arts from the University of Minnesota.