Practical advices
• Use heat resistant ovenware made of glass, glass,
ceramic, porcelain, ceramic or heat-resistant plastic.
These materials do not block the microwaves.
• This is not the case with ovenware made of metal.
The microwaves are obstructed which means that the
food in closed containers remains cold. Ensure that
any metal objects – e.g. a spoon – are at least 2 cm
away from the oven walls and the inside of the door.
The glass on the inside of the door could be damaged
by sparks.
• To cook or defrost pieces of meat of irregular sizes,
you may cover the thinner parts with tin foil, which
should be kept at least 2 cm away from the oven walls,
otherwise these may cause an electric arc.
• Metal spits may be used as long as they are smaller
than the pieces of meat.
• Crystal contains a percentage of lead, which may
cause it to crack if used in the microwave oven. The
same may happen to glass dishes with jagged edges.
! Porcelain dishes may be used but they should not
have hollow handles. Humidity may be formed inside
the hollow handles, which will causes an increase in
pressure that may cause them to break.
! This type of dish may heat considerably.
Painted glazed ceramic dishes may be used if the
painting is done under the glaze.
Many glazes and colours contain metallic substances.
If this is the case they should not be used in the
microwave as they may be damaged.
Recipients with silver and gold glazes may go dark.
! Plastic dishes should be heat resistant (at least 180°
C) or they may be deformed when used in the
microwave. Melamine dishes are not suitable for use in
the microwave as they heat up too much
To cook or heat food in plastic bags, they should be
perforated to allow vapour to escape thus preventing
the bag from bursting.
! Wooden recipients should not be used in the
microwave. Wood contains water, which evaporates
and may cause the recipient to crack.
