Miele M 316 E Operating Instructions Manual page 16

Suitable containers for microwave ovens
– prevents too much steam escaping,
especially when cooking foodstuffs
which need longer to cook, such as
potatoes,
– shortens and evens out the cooking
process,
– keeps the oven interior cleaner,
– prevents food from drying out,
– contains the 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).
Sealed glass containers, such as
jars of food, must be opened before
they are placed in the oven.
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– if food coated with breadcrumbs is
being cooked.
– cooking meals which are to be given
a crisp finish.