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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
Aluminum foil
✓ ✗
China and
✓
earthenware
Disposable polyester
✓
cardboard dishes
Fast-food packaging
• Polystyrene cups
✓
containers
• Paper bags or
✗
newspaper
• Recycled paper or
✗
metal trims
Glassware
• Oven-to-tableware
✓
• Fine glassware
✓
• Glass jars
✓
Comments
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.
Porcelain, pottery, glazed
earthenware and bone china are
usually suitable, unless deco-rated
with a metal trim.
Some frozen foods are packaged
in these dishes.
Can be used to warm food.
Overheating may cause the
polystyrene to melt.
May catch fire.
May cause arcing.
Can be used, unless decorated
with a metal trim.
Can be used to warm foods or
liquids. Delicate glass may break
or crack if heated suddenly.
Must remove the lid. Suitable for
warming only.
18
Cookware
Microwave-
Safe
Metal
• Dishes
✗
• Freezer bag twist
✗
ties
Paper
• Plates, cups,
✓
napkins and Kitchen
paper
• Recycled paper
✗
Plastic
• Containers
✓
• Cling film
✓
• Freezer bags
✓ ✗
Wax or grease-proof
✓
paper
: Recommended
✓
: Use Caution
✓✗
: Unsafe
✗
Comments
May cause arcing or fire.
For short cooking times and
warming. Also to absorb excess
moisture.
May cause arcing.
Particularly if heat-resistant
thermoplastic. Some other
plastics may warp or discolour
at high temperatures. Do not use
Melamine plastic.
Can be used to retain moisture.
Should not touch the food. Take
care when removing the film as
hot steam will escape.
Only if boilable or oven-proof.
Should not be airtight. Prick with a
fork, if necessary.
Can be used to retain moisture
and prevent spattering.
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