22 English
C
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uide
Cookware
Microwave-
safe
Description
Fast-food
packaging
Polystyrene
cups
containers
✓
Can be used to warm food.
Overheating may cause the
polystyrene to melt.
Paper bags or
newspaper
✗
May catch fire.
Recycled
paper or
metal trims
✗
May cause arcing.
Glassware
Oven-to-
tableware
✓
Can be used, unless decorated with a
metal trim.
Fine
glassware
✓
Can be used to warm foods or
liquids. Delicate glass may break or
crack if heated suddenly.
Glass jars
✓
Must remove the lid. Suitable for
warming only.
Metal
Dishes
✗
May cause arcing or fire.
Freezer bag
twist ties
✗
Paper
Plates, cups,
napkins and
kitchen paper
✓
For short cooking times and
warming. Also to absorb excess
moisture.
Recycled
paper
✗
May cause arcing.
Cookware guide
To cook food in the microwave oven, the microwaves must be able to penetrate
the food, without being reflected or absorbed by the dish used.
Care must therefore be taken when choosing the cookware. If the cookware is
marked microwave-safe, you do not need to worry.
The following table lists various types of cookware and indicates whether and how
they should be used in a microwave oven.
Cookware
Microwave-
safe
Description
Aluminum foil
✓✗
Can be used in small quantities to
protect areas against overcooking.
Arcing can occur if the foil is too
close to the oven wall or if too much
foil is used.
Crust plate
✓
Do not preheat for more than 8
minutes.
China and earthenware
✓
Porcelain, pottery, glazed
earthenware and bone china are
usually suitable, unless decorated
with a metal trim.
Disposable polyester
cardboard dishes
✓
Some frozen foods are packaged in
these dishes.
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