Materials you can use in microwave oven
Utensils
Remarks
Aluminum foil
Shielding only. Small smooth pieces can be used to cover thin parts of meat or poultry to
prevent overcooking. Arcing can occur if foil is too close to oven walls. The foil should be at least
1 inch (2.5cm) away from oven walls.
Browning dish
Follow manufacturer's instructions. The bottom of browning dish must be at least 3/16 inch
(5mm) above the turntable. Incorrect usage may cause the turntable to break.
Dinnerware
Microwave-safe only. Follow manufacturer's instructions. Do not use cracked or chipped dishes.
Glass jars
Always remove lid. Use only to heat food until just warm. Most glass jars are not heat resistant
and may break.
Glassware
Heat-resistant oven glassware only. Make sure there is no metallic trim. Do not use cracked or
chipped dishes.
Oven cooking
Follow manufacturer's instructions. Do not close with metal tie. Make slits to allow steam to
bags
escape.
Paper plates
Use for short–term cooking/warming only. Do not leave oven unattended while cooking.
and cups
Paper towels
Use to cover food for reheating and absorbing fat. Use with supervision for a short-term cooking
only.
Parchment
Use as a cover to prevent splattering or a wrap for steaming.
paper
Plastic
Microwave-safe only. Follow the manufacturer's instructions. Should be labeled "Microwave
Safe". Some plastic containers soften, as the food inside gets hot. "Boiling bags" and tightly
closed plastic bags should be slit, pierced or vented as directed by package.
Plastic wrap
Microwave-safe only. Use to cover food during cooking to retain moisture. Do not allow plastic
wrap to touch food.
Thermometers
Microwave-safe only (meat and candy thermometers).
Wax paper
Use as a cover to prevent splattering and retain moisture.
Materials to be avoided in microwave oven
Utensils
Aluminum tray
Food carton with metal handle
Metal or metal trimmed utensils
Metal twist ties
Paper bags
Plastic foam
Wood
Remarks
May cause arcing. Transfer food into microwave-safe dish.
May cause arcing. Transfer food into microwave-safe dish.
Metal shields the food from microwave energy. Metal trim may cause arcing.
May cause arcing and could cause a fire in the oven.
May cause a fire in the oven.
Plastic foam may melt or contaminate the liquid inside when exposed to high
temperature.
Wood will dry out when used in the microwave oven and may Split or crack.
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