All Things Appliance

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Metal should never be used in a microwave because it reflects microwave energy instead of absorbing it, which can cause sparks, electrical arcing, fires, and permanent damage to the microwave. Items like aluminum foil, silverware, and metal containers disrupt how microwaves heat food and can pose serious safety risks. To avoid damage or fire hazards, always use microwave-safe glass, ceramic, or plastic containers specifically labeled for microwave use.