Why Does The Bottom Of My Grill Rust?

The bottom of your grill is exposed to heat and humidity, and that’s where rust usually starts. To prevent rust, you need to clean the grate regularly and apply non-corrosive paint.

When the bottom of your grill rusts, it’s typically because you’re not cleaning it properly. You should clean your grill after every use by brushing off any leftover food, wiping down the grates with a damp cloth, and then spraying the grates with oil like canola or vegetable oil. 

In this article, we will explain the reasons for rusting and how you can prevent your grill from rusting. 

How do you keep the bottom of a grill from rusting?

Let’s explore a few ways to prevent rust from forming on the bottom of your grill.

Method 1: The first is to cut some aluminum foil and lay it down on the bottom of the grill.

Method 2: The second is to place a piece of coated wire mesh down over the bottom of the grill.

Method 3: You can prevent rust on a grill’s bottom by rubbing it with a thin layer of vegetable oil. The oil will help prevent rust from forming, but it will also burn off and leave you with a nicely seasoned grill.

Method 4: Keeping the bottom of your grill from rusting is actually pretty easy and all you need to do is mix 1/2 cup of water with 1/2 cup of salt and then use that mixture to wipe down the inside of your grill after you’re done cooking. Repeat this method after every time you use it.

Way 5: Fill a spray bottle with water and vinegar. Spray the bottom of your grill and wipe it clean with a paper towel. This cleans off excess grease and prevents rust build-up.

Method 6: If you don’t want to use foil, there are a few things you can try. Some people recommend sprinkling salt on the bottom of the grill to prevent rusting. If you do this, make sure you wipe down the grill afterward because it will be salty.


The key to keeping the bottom of a grill from rusting is to spray it down with cooking oil after every use. This will keep any moisture from collecting at the bottom of the grill. If you’re not using your grill often, then you can also just place a paper towel under the grate to soak up any excess moisture.

Is rust on the bottom of the grill safe?

The short answer to the question of rust on the bottom of your grill is yes, it is safe. According to the experts, as long as there isn’t any pitting or holes in the surface of the metal, you’re good to go. 

And there are no health risks to eating food that has been grilled on a rusty surface, but we wouldn’t recommend it. The rust will leach into the food and may leave a metallic aftertaste in your mouth. If it looks like the grill is rusting through, it’s probably a good idea to replace it.

In general, rust on the bottom of your grill is perfectly safe. The bottom of a grill is usually stainless steel and stainless steel doesn’t rust. It can corrode or turn a grey color when exposed to air, but it won’t rust. 

So we can say that rust on the bottom of your grill isn’t a health hazard, but it does affect the taste of your food.

Why does my grill keep rusting?

If your grill is rusting, there are a few possible culprits. If you’re using a charcoal grill and the rust is occurring on the inside of the grill, it could be because you’re not thoroughly cleaning the grill after each use. 

And if you’re not cleaning your grill after each use, you could be allowing the build-up of grease and grime on the surface before you put your grill away.


It’s important to look for a grill that has a stainless steel body. Stainless steel is a great material for grills because it doesn’t rust. Stainless steel is also easy to clean and won’t get burnt or charred in the same way as other materials.

How do you get the rust off the outside of a grill?

There are many ways we can get rid of rust let’s see step by step:

Step 1: To get the rust off the outside of a grill, take some sandpaper.

Step 2: Start by cleaning your grill with a wire brush

Step 3: Then sand it down until all the rust is gone.

Step 4: Then coat it with a protective coating, like a high-quality grill paint.

Step 5: Then hose it off, and then let it dry completely.

Step 6: Then you can use coarse steel wool or a wire brush to scrub away the rust.

Step 7: Wash it with water. 

Method 2: You can clean rust off the outside of a grill by rubbing it with a paste made from baking soda and water.

Step 1: Take 1/2 cup of baking soda

Step 2: Mix soda with 1 cup of water and make a thick paste.

Step 3: Put this mixture on the rusted grill and let it dry.

Step 4: After half an hour takes a wire brush and scrub it until all of the rust goes off.

Step 5: Wash the grill with water and a dishwasher.  

Step 6: Your grill is again new and ready to use.

I’ve tried this method and it works very well, but it can take a lot of time to scrub the rust off.

Method 3:  You can get the rust off of your grill with a 50/50 mixture of vinegar and water. Use this solution on a soft cloth and wipe down the rust. This should remove the buildup and leave your grill looking shiny and new again.

Method 4: You can also use a good wire-bristle brush to scrub it down. Then, rub it down with a paste made of coarse salt and a little bit of lemon juice. Once you’ve done that, let it sit for half an hour and then scrub it again.

How do I make sure the bottom of my grill doesn’t rust again?

It’s all about proper maintenance. If you want to keep the bottom of your grill rust-free, then you’ll need to clean it with a wire brush before and after every use. You can also spray the grill grates with a coating that protects against rust or add a coating of vegetable oil to your grates before you start grilling. 

The most important thing is to clean it as soon as you’re done using it. Salt, water, and grease are all bad for your grill and will cause rust if you’re not careful. Let’s see more about how can you protect your grill:

  1. Use a grill cover to protect it from the elements
  2. Clean the grill after each use with a wire brush.
  3. Never scrub the grill with steel wool or other abrasive materials
  4. If you don’t have a cover, clean it immediately after you use it.

What to do to make it less rusty?

To prevent rust from forming in the future, spray your grill with rust-preventing oil (like vegetable oil) before storing. Or soak the grill grate in hot soapy water, then scrub it with a brush, and then rinse thoroughly. 

Dry the grate and coat it with a thin layer of vegetable oil. Preheat the grill on high for five to 10 minutes, then turn off the heat and let it cool for 30 minutes before cooking.

How do you keep a cast iron grill from rusting?

Cast iron is a great material for cooking because it creates a nice, even heat distribution, it’s durable, and it can handle high temperatures. The downside of cast iron is that it can rust if you don’t take proper care of it.

There are a couple of things you can do to ensure your cast iron grill doesn’t rust.

Step 1: First, you should season it before you use it for the first time and then cook with it as much as possible to build a protective layer of seasoning.

Step 2: The best way to do this is by rubbing the inside of the grill with a paper towel or cloth that’s been coated in cooking oil and then heating it on a stove-top or in the oven.

Step 3: Repeat this process before and after using the grill. 

Note: Never leave cast iron grill without oiling.


As we have learned there are several ways to protect your grill from rust. However, if you want to be 100% sure that your grill won’t rust, you should use stainless steel grill grate. 

Moreover, if you don’t want to spend too much time and money on the process, then the easiest and most effective way to protect your grill is to simply clean it after each use

The information in this article should help you prevent your cast iron grill from rusting. If you have any questions, feel free to ask us in the comment section below. Thanks for reading!