R-662WM (serv.man3) - Sharp Home Appliance User Guide / Operation Manual. Page 18

GB-17

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.

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 specifi ed 
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 fi ne glassware as it can 
break or crack if heated suddenly.

Metal

✘

✔

It is not recommended to use metal cookware as it will 
arc, which can lead to fi re.

Plastic/Polystyrene e.g fast 
food containers

✔

✘

Care must be taken as some containers warp, melt or 
discolour at high temperatures.

Cling fi 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.

Paper - Plates, cups and 
kitchen paper

✔

✘

Do not use plastic or metal ties, as they may melt or 
catch fi re due to the metal ‘arcing’.

Straw and wooden 
Containers

✔

✘

Only use for warming or to absorb moisture.
Care must be taken as overheating may cause fi re.

Recycled paper and 
newspaper

✘

✔

Always attend the oven when using these materials as 
overheating may cause fi re.
May contain extracts of metal which will cause ‘arcing’ 
and may lead to fi re.