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cookware guide
To cook food in the microwave oven, the microwaves must be
able to penetrate the food, without being reected 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
Comments
Aluminium 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
Browning plate
✓
Do not preheat for more than
eight 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.
Fast-food packaging
• Polystyrene cups
containers
✓
Can be used to warm food.
Overheating may cause the
polystyrene to melt.
• Paper bags or
newspaperr
✗
May catch re.
• Recycled paper or
metal trims
✗
May cause arcing.
Cookware
Microwave-
Safe
Comments
Glassware
• Oven-to-table ware
✓
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 re.
• 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.
Plastic
• Containers
✓
Particularly if heat-resistant
thermoplastic. Some other
plastics may warp or discolour
at high temperatures.
Do not use Melamine plastic.
• Cling lm
✓
Can be used to retain moisture.
Should not touch the food. Take
care when removing the lm 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-proof
paper
✓
Can be used to retain moisture
and prevent spattering.
✓
: Recommended
✓✗
: Use Caution
✗
: Unsafe