6
SAFE MATERIALS FOR MICROWAVE
There may be certain non-metallic utensils and containers that are
not safe to use for microwaving. Refer to the instructions on Materials
You Can Use In Microwave Oven and Materials To Be Avoided In
Microwave Oven on this page and page 7.
To check if a material is microwave safe, you can test it following the
procedure below.
1. Fill a microwave-safe container with 1 cup (250ml) of cold water
along with the utensil in question.
2. Cook on maximum power for 1 minute.
3. Carefully feel the utensil. If the utensil is warm, do not use it for
microwave cooking.
4. Do not exceed 1 minute of cooking time.
MATERIALS YOU CAN USE IN MICROWAVE OVEN
Material
Remarks
Aluminum foil
Shielding only. Small, smooth pieces can be used
to cover thin parts of meat or poultry to prevent
overcooking. Sparking can occur if foil is too close
to oven walls. The foil should be at least 1 inch
(2.5cm) away from oven walls.
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 glassware.
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.
