Person selecting a setting on a countertop microwave control panel

Can you microwave aluminum foil?

If you do so with extreme caution and following the protocol provided in your microwave’s owner’s manual, you may be able to use aluminum foil in your microwave. To do so safely and prevent sparking in your microwave, make sure that the foil is completely smooth without any wrinkles or sharp edges.

Whether you can use aluminum foil in your microwave can vary depending on the model of your microwave. Always defer to your user manual. Explore this guide to learn more about microwaving aluminum foil to help you safely use your microwave.

Person selecting a setting on a microwave control panel Person selecting a setting on a microwave control panel

Is it safe to put aluminum foil in the microwave?

You can safely use aluminum foil in your microwave as long as you do so properly and follow the instructions provided in your appliance’s product manual. However, since it is easy to misuse aluminum foil in a microwave, it’s often a good idea to avoid it altogether.

It’s important to be extremely cautious of what you put inside your microwave, as these machines work using electromagnetic waves to produce heat. Metals, like aluminum, may disrupt the electromagnetic energy and lead to improperly cooked food or can even cause damage to your microwave.

Can aluminum foil catch fire in the microwave?

Improper use of aluminum foil in a microwave could potentially create sparks and even a fire inside the appliance. This is why it is crucial to use aluminum foil sparingly and with extreme caution and follow the instructions for use provided in your product manual.

NOTE: If your microwave’s owner’s manual does not provide any instructions about microwaving aluminum foil, avoid using it in the appliance at all.

Can you put other metals in the microwave?

Because of the potential safety hazard, it is recommended that you should avoid placing any metal inside a traditional microwave. This includes items made from steel, iron or copper.

If you have a convection microwave, you might be able to use cookware containing metal while the appliance is switched onto its convection setting, as this stops the microwave from cooking using electromagnetic waves and instead heats food using a convection heating element.

Person selecting a setting on a countertop microwave control panel Person selecting a setting on a countertop microwave control panel

Tips for safely microwaving aluminum

Since you should use caution when microwaving aluminum foil, following these tips along with the instructions in your owner’s manual can help you do so safely can help.

  • Make sure the foil is flat and free of wrinkles or sharp protrusions. Avoid microwaving food wrapped in aluminum foil as folding the foil may crinkle it and may lead to sparking.

  • Place the aluminum foil in the center of the microwave, keeping it at a minimum of one inch away from the walls, bottom and top of the interior.

  • Keep a close eye on your microwave as you use aluminum foil inside, and immediately end use if you see or hear sparks inside.

Shop Whirlpool® Microwaves

With Whirlpool® Microwaves, you can cook up post-game snacks to feed the soccer team and reheat the leftovers from last night’s dinner. Browse microwaves from Whirlpool brand with features on select models like CleanRelease® Non-Stick Interior, which helps prevent spills from sticking, or Air Fry Mode, which gives you the convenience of a microwave and an air fryer all in one appliance.

Was this article helpful? Pass it on

Explore more from Whirlpool brand

Gold home heartbeat logo over image of a tablet with Whirlpool blog page displayed in the background Gold home heartbeat logo over image of a tablet with Whirlpool blog page displayed in the background

home heartbeat

Ready for more tips, home hacks and appliance guides?