Suitable containers for microwave ovens
Microwaves
– are reflected by metal,
–pass through glass, porcelain, 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:
–
These can be defrosted and reheated in the microwave oven, if recommended by the manufacturer. 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
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