Materials not safe for use in microwave ovens
Utensils
Notes
Aluminium trays
May cause an electric arc to form. Transfer food to a microwave-safe plate.
Cardboard food
May cause an electric arc to form. Transfer food to a microwaveable plate.
containers with
metal handles
Metal utensils or
Metal protects food against microwaves. Metal finishes can cause an electric
metal-finish
arc to form.
utensils
Metal sealing
They may cause an electric arc to form, which in turn may result in a fire
clips
starting inside the oven.
Paper bags
May cause a fire to start inside the oven.
Expanded plastic
Expanded plastic foam may melt or contaminate the liquid inside it when
foam
exposed to high temperatures.
Wood
As wood dries after it has been used in a microwave oven, it may split or crack.
Advice for microwave cooking, observe the following recommendations:
- Before heating or cooking food with peel or skin (e.g. apples, tomatoes, potatoes, sausages),
prick them so they do not burn. Dice food before starting to prepare it.
- Before using a container or plate, make sure it is microwave-safe (see paragraph on cooking
utensil types).
- When cooking foods with very little moisture (e.g. defrosting bread, making popcorn, etc.),
evaporation takes place extremely quickly.
The oven then functions as if it is empty, which puts the food at risk of burning. The oven and the
container may be damaged. We therefore recommend setting the time for no longer than is
strictly necessary, and supervising the cooking process closely.
- The microwave cannot be used to heat large quantities of oil (for frying).
- Remove pre-cooked food from its container, as this type of container is not always heat-resistant.
Observe the instructions supplied by the manufacturer.
- If using various containers, e.g. cups, arrange them evenly on top of the turntable.
- Do not seal plastic bags with metal clips. Use plastic clips. Pierce the bags several times so that
steam can escape easily.
- Steam may build up on the oven door during cooking and may then begin to drip. This situation is
normal and may also not be so evident in low room temperatures. This situation does not
influence correct and safe oven operation. On completion of cooking, dry any condensation
which has formed.
- When heating liquids, use containers with a wide opening, so that steam can evaporate easily.
Prepare food in accordance with the instructions, and observe the cooking times and power levels
in the automatic mode food cooking tables. Bear in mind that the figures provided are purely
indicative and may vary depending on the type of food, its initial state, temperature and moisture
level. We recommend adjusting the cooking times and power levels in line with each individual
situation. Depending on the characteristics of the food, it may be necessary to increase or reduce
cooking times or power levels.
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