Miele H 158 MB Operating Instructions Manual page 22

Press the Start control.
If a crackling noise is heard accom-
panied by sparks during the test,
switch off the appliance immediate-
ly. Turn the function selector switch
to the "0" position.
The water in the glass should be
warm, but the dish cool. If the dish
is very hot and the water is cold, it
would be unwise to use the dish.
Any crockery which causes this re-
action, is unsuitable for use in the
microwave oven.
Note: Although some ovenproof earth-
enware can be used in a microwave
oven, it may contain a considerable
amount of moisture, causing it to
become hot during use. It is normally
advisable to avoid using it in a micro-
wave oven.
If any doubt exists about the suita-
bility of containers, please contact
the maker.
This test cannot be used to check
whether items with hollow knobs or
handles are suitable for use in a micro-
wave oven.
– prevents too much steam escaping,
especially when cooking foodstuffs
which need longer to cook, such as
potatoes,
22
– shortens and evens out the cooking
process,
– prevents food from drying out,
– prevents any loss of aroma.
Always use lids or covers made of
microwave-safe glass or plastic, or use
a clingfilm recommended for use in a
microwave oven, (pierce as instructed
by the producer). Unsuitable clingfilm
can melt into the food.
Sealed glass containers, such as
jars of food, must be opened before
they are placed in the oven.
– cooking meals which are to be given
a crisp topping,
– using a combination programme.
if