Operation Manual
GB-32
SUITABLE COOKWARE
SUITABILITY TEST
If you are not sure whether your 
dishes are suitable for the use in 
a microwave, please do the 
following test: Place the dish into 
the microwave oven. Place a glass 
vessel filled with 150 ml of water 
on top of or next to the dish. Turn the microwave oven 
on for 1 to 2 minutes at 100P power. If the dish stays 
cool or at room-temperature, it is suitable for use in 
the microwave oven. Do not use this test for plastic 
dishware as it might melt.
COOKWARE SUITABLE FOR MICROWAVE 
OPERATION
In general, heat resistant microwave dishes, e.g. made 
of porcelain, ceramic or glass, are also suitable for the 
combi operation (microwave and hot air, microwave and 
grill). Please remember that the hot air or the grill will 
also heat up your dish. Plastic dishware and foil are not 
suitable for combi-operation. Do not use paper towels or 
baking parchment. It could overheat and ignite.
METAL
should not be used. Exceptions are coated backing 
pans, which allow the outer surface of the food, e.g. 
bread or cakes, to brown. Please remember the notes 
for cookware suitable for microwave operation. If 
sparks develop, put heat resistant insulating material, 
e.g. small porcelain plate, between the metal object 
and the grill. If sparks develop, do not use such 
materials for cooking in COMBI OPERATION
COOKWARE SUITABLE FOR HOT AIR AND 
GRILL OPERATION
For cooking with hot air or grill without microwave 
operation, you may use any dish that is suitable for use 
in a conventional stove or grill.
BEFORE YOU BEGIN…
To make the use of your microwave as easy as possible, 
please read the following notes and tips: Only turn your 
microwave on when food is placed inside the cooking 
chamber.
ENTER THE TIME
Times for thawing, heating and cooking are usually 
much shorter than in a conventional stove or oven.  
Please adhere to the times recommended in this 
cookbook. You should enter a shorter time rather than a 
longer one. After cooking, test for doneness. It is better 
to add some time after testing for doneness than to 
overcook the food. 
INITIAL TEMPERATURE
The time required to thaw, heat or cook a food are 
dependent on the initial temperature of the food. Frozen 
or refrigerated foods, for example, require a longer 
heating time than foods at room temperature.
For heating and cooking of foods, we assume normal 
storage temperature (refrigerator temperature, about 
5°C, room temperature about 20°C). We assume a 
temperature of -18°C for thawing frozen foods.
Popcorn must only be made in special popcorn 
containers suitable for use in microwave. Adhere 
exactly to the manufacturer’s instructions. Do not use 
regular paper containers or glass 
cookware.
Do not cook Eggs in their shell. 
Pressure will build inside the shell, 
which could lead to an explosion of 
the egg. Pierce the egg yellow with 
a fork prior to cooking.
Do not heat oil or grease used 
for frying in the microwave. The oil 
temperature cannot be controlled. 
The oil could splatter.
Do not heat closed vessels, like 
jars or cans. The pressure could 
cause such vessels to explode. (Exception: Canning/
Preserves).
TIPS AND TECHNIQUES










