Cookware Guide
GB
Cookware
Aluminium foil
Browning 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-table ware
• Fine glassware
• Glass jars
Metal
• Dishes
• Freezer bag twist
ties
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 eight
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.
May cause arcing or fire.
Microwave-
Safe
✓
✗
✓
✓
✓
✓
✗
✗
✓
✓
✓
✗
✗
Cookware
Paper
• Plates, cups,
napkins and
Kitchen paper
• Recycled paper
Plastic
• Containers
• Cling film
• Freezer bags
Wax or grease-proof
paper
Comments
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 temper-
atures. 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.
Microwave-
Safe
✓
✗
✓
✓
✓
✗
✓
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.
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