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Question:

foil in a microwave question?

I accidentally put the wrapping foil in with my sandwich in the microwave just for about 10 secondsonce i saw the sparks, i immediately took it out and i saw that i caused a burn in the microwaveDoes this mean that the microwave is broken? It still heats food up though

Answer:

Always consult the owner's manual of your microwave oven and heed the manufacturer's recommendations for the use of aluminum foilIt can be safe to use small amounts of aluminum foil in a microwave ovenMicrowaves cannot pass through metal but are absorbed by foodNo food completely covered by aluminum foil or in a covered metal pan should be put in a microwave oven because food wouldn't be available to absorb the microwavesOperating the oven empty or when the food is completely wrapped in aluminum foil can cause damage to the oven and the food won't heatHowever, small pieces of aluminum foil can be used to shield areas of foods, such as poultry drumsticks and wings, to prevent overcookingSome food packaged in foil containers can be safe to microwaveRead the package heating instructions to see if the food manufacturer has specific recommendations for microwaving the productBecause food in these containers will only heat from the top, it's best to microwave foods only 1-2 inches in depth so food near the bottom will be heated thoroughly before food on top dries and overcooksGeneral Rules for Safe Use of Aluminum Foil: Use new, smooth foil onlyWrinkled foil can cause arcing (sparks) Cover no more than 1/4 of the food with foil Shape the foil smoothly to the food so no edges stick out It makes no difference which side of foil (shiny or dull) is facing out Do not place the foil closer than one inch from the oven walls If the microwave oven has metal shelves OR a metal turntable, don't microwave food in foil containers or metal pans, and don't let foil used for shielding touch or be close to the shelves or turntable If you see arcing (sparks), immediately remove the foil shielding; transfer frozen food from foil container to a microwave-safe utensil.
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