Protect Grill Grates from Rust with These Essential Tips

Easy Function Mar 09, 2025
3 People Read
Table of Contents
  1. Understanding Rust and Grill Grates
  2. Rust Prevention Methods
  3. Cleaning and Maintenance
  4. Additional Tips and Techniques
  5. Long-Term Care and Maintenance Schedule
  6. Final Thoughts

If you love grilling, you know how important it is to keep your grill grates in top shape.


But nothing ruins a perfect cookout faster than rusty grates.


Rust can affect your food, weaken the grates, and shorten the lifespan of your grill.


The good news?

Preventing rust is easy with the right care.


In this guide, we’ll cover why rust forms, how to prevent it, and the best ways to clean and maintain your grill grates for long-lasting performance.



Understanding Rust and Grill Grates


Rust happens when metal is exposed to moisture and oxygen over time. 


On grill grates, this process speeds up due to high heat, grease buildup, and improper cleaning.


Here’s what you need to know:


  • Grease buildup encourages rust – While grease might seem like a protective layer, it actually traps moisture and speeds up rust formation.


  • Oil prevents rust – A light coat of high-heat oil (like grapeseed or palm oil) creates a barrier that keeps moisture out.


  • Chromium in stainless steel grates helps resist rust – But only if the grates are kept clean and free from buildup.


  • Regular maintenance is key – Cleaning and seasoning your grill regularly prevents rust before it starts.


Learn More: Remove Rust from Grill Grates and Restore Their Shine


Rust Prevention Methods


To keep your grill grates rust-free, follow these proven techniques:


  • Apply Oil After Cleaning: After each grilling session, apply a light coat of oil to your grates. This protects them from moisture and helps maintain a non-stick surface. Best oils for seasoning grill grates include:

    • Grapeseed oil


  • Palm oil


  • Olive oil


  • Use a Rust-Resistant Coating: Some grill grates come with a protective coating, but over time, it wears off. If your grates start showing signs of wear, you can apply a high-temperature rust-resistant spray made for grills.


  • Season Your Grill Grates: Just like cast iron pans, grill grates benefit from seasoning. When you first get your grill, heat it up, apply a thin layer of oil, and let it bake in. This creates a rust-resistant surface.


  • Keep the Grates Clean and Dry: Never leave food residue on the grates after grilling. Moisture and leftover food can lead to rust spots. A wood grill scraper, like the Easy Function wood grill scraper, is an excellent tool for cleaning without damaging your grates. Unlike wire brushes, it molds to the shape of your grates over time, making cleaning even more effective.



Cleaning and Maintenance


Regular cleaning is crucial for keeping rust away. 


Here’s how to do it right:


  • Clean the Grates After Every Use: The best way to prevent rust is to clean your grates while they’re still warm. This removes grease and food debris before they harden.


  • Use the Right Tools: Wood grill scraper – scrapes off food without damaging the grates.


  • Onion or Lemon Hack: Rubbing a halved onion or lemon on the grates removes residue naturally.


  • Bristle-Free Brush: If you prefer a brush, use a bristle-free grill brush like Easy Function’s bristle-free grill brush. Unlike traditional wire brushes, it won’t leave behind metal bristles that can get into your food.



  • Avoid Wire Brushes: Traditional wire brushes can break off and pose a health risk. If you prefer a brush for deep cleaning, the Easy Function bristle brush is a safer option. It’s designed for heavy-duty cleaning while minimizing the risks of loose bristles. Plus, it features eZclean™ technology for easy handling. Right now, you can grab one at a discount:


  • Buy 2, get 10% off – Use code GOGRILL2


  • Buy 3, get 15% off – Use code GOGRILL3


  • Buy 4, get 20% off – Use code GOGRILL4



  • Keep the Grease Tray Clean: Grease trays collect drippings and can lead to rust over time. Empty and clean them regularly to prevent moisture buildup.


Additional Tips and Techniques


  • Store Your Grill Properly: Leaving your grill exposed to the elements speeds up rust formation. When not in use:


  • Cover it with a waterproof grill cover.


  • Store it in a dry place.


  • If indoors, use a dehumidifier to reduce moisture.


  • Use a Soft Cloth for Cleaning: After oiling your grates, wipe them down with a soft cloth or paper towel to evenly distribute the oil and remove excess residue.


  • Avoid Metal Tools: Using metal spatulas or scrapers can damage the protective layer on your grates, making them more susceptible to rust. Stick to wood or silicone tools.


Discover More: The Best Ways to Restore Cast Iron Grill Grates for Lasting Use


Long-Term Care and Maintenance Schedule


A consistent maintenance routine keeps your grill grates rust-free for years.


Weekly Maintenance


  • Oil the grates – Apply a light coat of oil after every use.


  • Check for rust spots – If you see rust, scrub it off with a grill brush or sandpaper.


  • Empty the grease tray – Prevents moisture buildup.


Monthly Maintenance


  • Deep clean your grill – Remove all parts and scrub them with warm, soapy water.


  • Re-season the grates – Apply oil and heat the grill to reinforce the protective layer.


Before Every Cookout


  • Perform a burn-off – Preheat your grill on high for 15 minutes to burn off residue.


  • Brush the grates – Use a bristle-free brush or scraper to remove any leftover debris.


Final Thoughts


Rusty grill grates can ruin your grilling experience, but with the right care, you can keep them in perfect condition for years.


By following these rust prevention techniques, using high-heat oils, and cleaning with safe, effective tools like the Easy Function wood grill scraper or bristle-free brush, you’ll enjoy a rust-free grill every time you fire it up.

Need the best grill cleaning tools? 

Click on the image below to check out Easy Function’s lineup of high-quality, rust-resistant BBQ tools!


Table of Contents
  1. Understanding Rust and Grill Grates
  2. Rust Prevention Methods
  3. Cleaning and Maintenance
  4. Additional Tips and Techniques
  5. Long-Term Care and Maintenance Schedule
  6. Final Thoughts