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 metalic trim. Do not use cracked or chipped dishes.
Oven cooking 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 thermome-
ters).
Wax paper. Use as a cover to prevent splattering and retain moisture.
MATERIALS TO BE AVOIDED IN MICROWAVE OVEN
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 metaltrimmed utensils. Metal shields the food from micro-
wave 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.
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