Microwaves
–
are reflected by metal,
– pass through glass, chinaware,
plastic and card,
–
and are absorbed by food.
Material and shape
The material and shape of containers
used affect cooking results and times.
Heat distribution is more even in round
and oval shaped flat containers than in
rectangular containers, providing better
results.
Metal
Metal containers, aluminium foil and
metal cutlery, or china with metallic
decoration, such as gold rims or
cobalt blue must not be used in an
oven being used in microwave
mode.
The metal reflects the microwaves,
hindering the cooking process.
Exceptions:
– Ready-meals in aluminium foil dishes
These can be defrosted and reheated
in the microwave oven, if recommended
by the manufacturer. Important:
Remove the lid first.
However, as food is only heated from
the top it is better to remove the food
from the aluminium foil container and
transfer it to a dish suitable for a
microwave oven. The heat distribution
will be more even.
If sparks and arcing occur when using
an aluminium container, stop and
transfer the food to a microwave-safe
container.
Suitable containers for microwave ovens
17
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