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Materials to be avoided in microwave oven
Utensils
Remarks
Aluminum tray
May cause arcing. Transfer food into microwave-safe dish.
Food carton with
May cause arcing. Transfer food into microwave-safe dish.
metal handle
Metal or metal-
Metal shields the food from microwave energy. Metal trim may
trimmed utensils
cause arcing.
Metal twist ties
May cause arcing and could cause a fire in the oven.
Paper bags
May cause a fire in the oven.
Plastic foam may melt or contaminate the liquid inside when
Plastic foam
exposed to high temperature.
Wood will dry out when used in the microwave oven and may
Wood
split or crack.
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