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 coking bags
Follow manufacturer's instructions. Do not close with metal tie. Make slits to allow steam to
escape.
Paper plates and cups Use for short–term cooking/warming only. Do not leave oven unattended while cooking.
Paper towels
Use to cover food for reheating and absorbing fat. Use with supervision for a short-term
cooking only.
Parchment paper
Use as a cover to prevent splattering or a wrap for steaming.
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
Remarks
Aluminum tray
May cause arcing. Transfer food into microwave-safe dish.
Food carton with metal handle
Metal or metaltrimmed utensils
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.
May cause arcing. Transfer food into microwave-safe dish.
Metal shields the food from microwave energy. Metal trim may cause arcing.
GB
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