Can you put foil in a toaster oven?

From lining pans for easy cleanup to covering casserole dishes during baking, aluminum foil has many uses. But if you just discovered that you shouldn’t use parchment paper in a toaster oven you’re probably wondering…can you put foil in a toaster oven? Are there alternatives to using foil in a toaster oven?

Roasted potatoes and chickpeas on a foil covered baking pan.

Here’s what we know for sure: NEVER cover your crumb tray or the walls of your toaster oven with foil. It can lead to overheating and is a fire hazard.

To find out if you can use foil in your specific toaster oven you’ll want to consult your owner’s manual or contact the manufacturer.

Why’s that? Because each manufacturer has different instructions for the use of foil in their toaster oven.

Toaster oven manuals

But Manuals Are Boring

We agree!

Fortunately, many manufacturers are updating their websites to include Care and Use Instructions along with how-to videos, recipes, and tips.

Oster has put together a fantastic How-To page that includes a quick and helpful video covering:

  • Instructions for using foil in their countertop ovens
  • Recommended bakeware
  • How to clean your countertop oven

If you’re a new Oster toaster oven owner, make sure to check out their other How-To videos for step-by-step instructions on using the digital and manual controls on an Oster Turbo Convection Oven.

KitchenAid has a page dedicated to Tips for Baking in a Countertop Oven that includes:

  • Bakeware suggestions
  • Modifying Recipes
  • Avoiding Over Browning
  • Using Aluminum Foil

While Hamilton Beach has a Toaster Oven FAQ with answers to a long list of questions regarding their toaster ovens including “can you put aluminum foil in a toaster oven?”

What if you can’t find the answer you’re looking for in your manual or on the manufacturer’s website?


We reached out directly to Cuisinart regarding the use of foil in their toaster ovens and they kindly provided the following recommendations:

“Our recommendation for aluminum foil is that it should be cut neatly to fit inside of the toaster oven pan. There should not be any overhang or be used to cover a broiling rack.”

Can you put foil in a convection toaster oven?

On the Care & Use FAQ for the Breville Smart Oven Pro (BOV845BSS), they do not recommend using foil when cooking with convection as it can restrict air-flow. You can read more about Breville’s recommendations for their smart ovens here.

{Related: Everything You Need to Know About Convection Toaster Ovens}

Alternatives To Using Foil In Your Toaster Oven

Raw cookie dough on a silicone baking mat lined quarter sheet pan.

We’re currently working to reduce the use of foil in our household and have found a few good alternatives:

For baked goods like toaster oven cookies we lightly oil our pans or line it with a toaster oven silicone baking mat.

To cook an item that calls for covering, we use a toaster oven-sized baking dish with a lid (that’s not glass) or a small dutch oven. Check out this post for covered casserole baking dish suggestions. Also, you’ll want to make sure any covered dish you use is not airtight as that can lead to other issues.

For a quick-fix, we’ve even tried covering a baking dish with a pizza pan or flat toaster oven cookie sheet like we did with this potatoes au gratin recipe.

If we come across any new foil alternatives or helpful manufacturer FAQ’s regarding the use of foil in a toaster oven we’ll be sure to update this page.

For more information about using foil in your toaster oven please consult your owner’s manual or contact the manufacturer for assistance.

Happy Cooking!


  1. I am new to toaster ovens. When you bake cookies, can you spray the pan with a cooking spray to avoid sticking.

    1. Hi Tina!

      I can’t speak for ALL toaster ovens but we haven’t had any problems with it.

      As an aside, cooking spray is not great for the pan and over time can leave a sticky hard to remove residue. That said, I still spray my pans on occasion 🙂

    1. Hi Ruth,

      The owners manual that came with our Breville Smart Oven Pro (BOV845BSS) has a large warning under the Care, Cleaning & Storage section regarding the quartz heating elements.

      They say to “Use extreme caution when cleaning the quartz heating elements. Allow the oven to cool completely, then gently rub a soft, damp sponge or cloth along the length of the heating element. Do not use any type of cleanser or cleaning agent.”

      You’ll want to refer to your own manual for more specific instructions as it may be different for each model of oven.

  2. I just received a convection,toaster oven with air fryer and was so interested in all the comments. One other question I have is what about those disposable foil trays or muffin pans ? Can they be used in these ovens safely? I haven’t used mine yet because it;s a new kitchen and I don’t want any tragedies. Thanks.

    1. Hi Angela,

      Congrats on your new toaster oven!

      I checked the website for a popular foil tray maker and didn’t see anything either way.

      So I’d say that’s a great question for the manufacturer of your toaster oven, especially if their manual has any specific directions regarding the use of foil. If you need help finding their contact info shoot me an email and I’ll help you get it.

      It’s good to be cautious but don’t let that get in the way of having fun cooking with your new kitchen toy. The metal pan that came with the oven is always a good pan to start with 🙂

  3. I just hate washing dishes so I use foil as a sort of tray, rather than something that needs to be washed. I use a piece of foil that is wider and longer than the inside of the oven, then fold the edges of the foil several times to give it strength and make it fit into the space. Great for roasting/cooking anything that does NOT have a sauce or any kind of liquid. Cooking fresh or frozen fish is a great application of the idea.

    1. This is such a great tip, Patricia! Super useful if you’re cooking in a camper, cabin, dorm, or anywhere it might be hard to store a lot of pans or difficult to wash dishes. Thank you for taking the time to share directions and meal ideas, I’m sure you’ve helped a lot of people 🙂

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