To cook/defrost food in a microwave oven, the microwave energy must be able to pass through the container to
penetrate the food. Therefore it is important to choose suitable cookware.
Round/oval dishes are preferable to square/oblong ones, as the food in the corners tends to overcook. A variety
of cookware can be used as listed below.
Cookware Microwave
Safe
Comments
Aluminium foil / Foil
containers
✔
/
✘
Small pieces of aluminium foil can be used
to shield food from overheating. Keep foil
at least 2cm from the oven walls, as arcing
may occur.
Foil containers are not recommended
unless specied by the manufacturer, and
Browning dishes
✔
Always follow the manufacturers instructions.
Do not exceed heating times given. Be very
careful as these dishes become very hot.
China and ceramics
✔
/
✘
Porcelain, pottery, glazed earthenware and
bone china are usually suitable, except for
those with metallic decoration.
Glassware e.g. Pyrex ®
✔
or crack if heated suddenly.
Metal
✘
It is not recommended to use metal cookware
Plastic/Polystyrene e.g.
fast food containers
✔
Care must be taken as some containers warp,
melt or discolour at high temperatures.
lm
✔
It should not touch the food and must be
pierced to let the steam escape.
Freezer/Roasting bags
✔
Must be pierced to let steam escape. Ensure
bags are suitable for microwave use. Do not
use plastic or metal ties, as they may melt or
re due to the metal arc ing.
Paper - Plates, cups and
kitchen paper
✔
Only use for warming or to absorb moisture.
Care must be taken as overheating may
re.
Straw and wooden
containers
✔
Always attend the oven when using these
Recycled paper and
newspaper
✘
May contain extracts of metal which will
WARNING:
When heating food in plastic or paper containers, monitor the oven due to the possibility of ignition.
COOKING & UTENSIL GUIDE
instructions are followed carefully.
as it can break
fire.
fire.
fire.
h
arc ingh
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