9
Advice on the use of
Cookware
Metal
Do not use metal dishes, tinned food, food wrapped
in tin foil and cutlery inside the microwave oven.
The metal reflects the microwaves and food is not
heated.
The food should be removed from its tin foil
containers and placed in dishes that are
appropriate for use in the microwave oven. As
microwaves don't penetrate tin foil, the food heats
only on the surface. By using appropriate dishes,
the heat is evenly distributed throughout the food.
EXCEPTIONS:
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.
Glass
All heat proof glass containers may be used.
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
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.
Glazed Ceramic Dishes
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
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.
Wood
Wooden recipients should not be used in the
microwave. Wood contains water which evaporates
and may cause the recipient to crack.
