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.
Microwave-
Cookware
safe
Aluminum foil
✓✗
Crust plate
✓
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
✓
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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.
Do not preheat for more than 8 minutes.
Porcelain, pottery, glazed earthenware
and bone china are usually suitable, unless
decorated 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.
Microwave-
Cookware
safe
Metal
•
Dishes
May cause arcing or fire.
✗
•
Freezer bag
✗
twist ties
Paper
•
Plates, cups,
✓
For short cooking times and warming. Also to
napkins and
absorb excess moisture.
kitchen paper
•
Recycled paper
May cause arcing.
Plastic
•
Containers
✓
Particularly if heat-resistant thermoplastic.
Some other plastics may warp or discolour
at high temperatures. Do not use Melamine
plastic.
•
Cling film
✓
Can be used to retain moisture. Should not
touch the food. Take care when removing the
film as hot steam will escape.
•
Freezer bags
Only if boilable or oven-proof. Should not be
✓✗
airtight. Prick with a fork, if necessary.
•
Wax or grease-
Can be used to retain moisture and prevent
✓
proof paper
spattering.
: Recommended
: Use caution
✓
✓✗
Comments
: Unsafe
✗
English 33
9/18/2019 12:28:36 PM