R-291KM (serv.man3) - Sharp Home Appliance User Guide / Operation Manual. Page 25

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23
SUITABLE OVENWARE
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 specified by the 
manufacturer, e.g. Microfoil ®, follow instructions carefully.
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 ®
Care should be taken if using fine glassware as it can break or crack 
if heated suddenly.
Metal
It is not recommended to use metal cookware when using 
microwave power as it will arc, which can lead to fire.
Plastic/Polystyrene
E.g. fast food 
containers
Care must be taken as some containers warp, melt or discolour at 
high temperatures.
Cling film
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 or convection use. Do not use plastic or metal ties, as 
they may melt or catch fire due to the metal arcing.
Paper plates/cups 
and kitchen paper
Only use for warming or to absorb moisture.
Care must be taken as overheating may cause fire.
Straw and wooden 
containers
Always attend the oven when using these materials as overheating 
may cause fire.
Recycled paper
and newspaper
May contain extracts of metal which will cause ‘arcing’ and may lead 
to fire.
Racks
The metal racks supplied have been specially designed for all cooking 
modes and will not damage the oven.
Square trays
Use supplied square trays with Convection only.
 Warning:  When heating food in plastic or paper containers, monitor the oven due to 
the possibility of ignition.
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1/30/2014   10:48:15 AM
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