Can You Microwave Aluminum Foil?
No, you should not put Reynolds Wrap® Aluminum Foil in the microwave. In general, aluminum foil is not microwave-safe because it can spark, heat food unevenly, and potentially damage your microwave or create a fire hazard.
Instead, reheat food using microwave-safe glass, ceramic, paper products, or parchment paper when appropriate.
Can you reheat food in aluminum foil in the microwave?
While some microwave manufacturers provide limited instructions for using small amounts of aluminum foil, Reynolds Wrap® Aluminum Foil IS NOT microwave-safe. Always follow the instructions for your microwave, cookware, and food packaging before reheating.
For more tips, explore our Complete Guide to Using Aluminum Foil
Can you microwave aluminum trays or disposable baking pans?
No, as with all foil products, it is not recommended to use any metal or aluminum foil products in the microwave, including disposable baking and grill pans, as well as pasta and casserole pans.
Alternatives to using aluminum products in the microwave:
- Microwave-safe glass or ceramic containers
- Microwave-safe lids
- Parchment paper or wax paper for light covering
- Paper towels for splatter control
- Microwave-safe plastic wrap, following package directions
What happens when you microwave aluminum foil?
Aluminum foil and other metal objects reflect microwave energy instead of allowing it to pass through food. This can cause electricity to build up and create sparks, especially if the foil is crumpled, has sharp edges, or touches the sides of the microwave.
What can happen:
- Sparking (arcing): Electricity can jump from the foil, creating sparks or small flames.
- Fire risk: Those sparks can ignite nearby flammable materials, such as paper products, grease, or food reside.
- Microwave damage: Arcing can damage the inside of your microwave, including its interior coating and electrical components.
For safe reheating, always follow your microwave manufacturer's instructions and never use a damaged microwave.
What to do if foil sparks in the microwave
If your experience sparks from accidental use of aluminum foil in your microwave, follow these steps:
- Stop the microwave immediately. Either stop the microwave cycle or unplug the microwave entirely.
- Carefully remove the foil from the microwave. If cool to the touch with no clear signs of sparking or flames, carefully remove your foil sheet of foil-wrapped food from the microwave.
- Inspect your microwave. Check the inside of the microwave for damage before using it again and follow your microwave manufacturer's safety instructions.
- Do no use foil in the microwave. Use alternative parchment or wax paper, microwave-safe glass, ceramic, or silicone products in the microwave instead.
- Practice fire safety. Always keep a fire blanket or fire extinguisher nearby in case of a fire emergency.
Submit your own question to the product experts at Reynolds.