how to fix rusted grill bottom

Fixing a rusted grill bottom is essential to ensure the longevity and safety of your grill. Rust can weaken the structure and affect the taste of your food. Here’s how to address rust on the bottom of your grill:

Materials You’ll Need:

  • Wire brush or steel wool
  • Grill scraper or putty knife
  • Rust converter or rust remover (commercial or homemade)
  • Vinegar or lemon juice (if using a homemade rust remover)
  • Baking soda (if using a homemade rust remover)
  • Protective gloves and eye protection
  • Rust-resistant high-heat paint (if necessary)
  • Grill brush
  • Mild dish soap
  • Clean cloth or paper towels
  • Grill cover (optional, for future protection)


  1. Safety First:
    • Wear protective gloves and eye protection while working with rust remover, chemicals, or abrasive materials.
  2. Remove Grates and Drip Pan:
    • Take out the grates, drip pan, and any other removable parts from the grill to access the rusted bottom.
  3. Clean Loose Rust:
    • Use a wire brush or steel wool to remove loose rust and debris from the affected area. Scrape off any flaky rust with a grill scraper or putty knife.
  4. Prepare a Rust Remover:
    • You can use a commercial rust converter or make a homemade rust remover:
      • Commercial rust converter: Follow the product instructions.
      • Homemade rust remover: Mix equal parts vinegar (or lemon juice) and baking soda to create a paste. Apply this paste to the rusted areas and let it sit for about 30 minutes.
  5. Scrub and Remove Rust:
    • Scrub the rusted areas with a wire brush or steel wool to remove as much rust as possible. For stubborn rust spots, you may need to repeat the process or use a rust remover product. Rinse with water if using a homemade rust remover.
  6. Dry Thoroughly:
    • After removing the rust, allow the grill bottom to dry completely. Use a clean cloth or paper towels to wipe away any moisture.
  7. Inspect for Paint Damage:
    • Check if the rust removal process has damaged the grill’s paint or finish. If necessary, you can touch up the affected areas with rust-resistant high-heat paint. Follow the paint manufacturer’s instructions for application and drying times.
  8. Clean and Reassemble:
    • Clean the grates, drip pan, and any other removable parts with mild dish soap and water. Rinse and let them dry completely. Reassemble the grill.
  9. Regular Maintenance:
    • To prevent future rust, keep your grill clean and dry, especially when not in use. Consider using a grill cover to protect it from the elements.
  10. Monitor for Rust:
    • Periodically inspect the grill’s bottom for any signs of new rust. Address any emerging rust promptly to prevent it from spreading.

By following these steps, you can effectively remove rust from the bottom of your grill and extend its lifespan. Regular cleaning and maintenance will help prevent rust from recurring and keep your grill in good working condition.

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