9
MATERIALS TO BE AVOIDED IN MICROWAVE OVEN
Utensils Remarks
Aluminum tray May cause arcing. Transfer food into microwave-safe
dish.
Food carton with metal handle May cause arcing. Transfer food into microwave-safe
dish.
Metal or metal-trimmed utensils Metal shields the food from microwave energy. Metal
trim may 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 Plastic foam may melt or contaminate the liquid inside
when exposed to high temperature.
Wood Wood will dry out when used in the microwave oven
and may split or crack.
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