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17
USE OF SUITABLE UTENSILS
See the table on "Materials you can use in microwave oven or to be avoided in microwave
oven." There may be certain non-metallic utensils that are not safe to use for microwaving.
If in doubt, you can test the utensil in question following the procedure below.
Utensil Test:
1. Fill a microwave-safe container with 1 cup of cold water (250ml) along with the utensil in
question.
2. Cook on maximum power for 1 minute.
3. Carefully feel the utensil. If the empty utensil is warm, do not use it for microwave cooking.
4. Do not exceed 1 minute cooking time.
Materials you can use in microwave oven
Utensils
Remarks
Browning dish
Follow manufacturer’s instructions. The bottom of browning dishes must be at least
3/16 inch (5mm) above the turntable (Use a rack). Incorrect usage may cause the
turntable to break.
Dinnerware
Microwave-safe only. Follow the manufacturer's instructions. Do not use cracked or
chipped dishes.
Glass jars
Always remove lid. Use only to heat food until just warm. Most glass jars are not
heat resistant and may break.
Glassware
Heat-resistant oven glassware only. Make sure there is no metallic trim. Do not use
cracked or chipped glassware.
Oven cooking bags
Follow manufacturer’s instructions. Do not close with a metal tie. Make slits to allow
steam to escape.
Paper plates and
cups
Use for short–term cooking/warming only. Do not leave oven unattended while
cooking.
Paper towels
Use to cover food for reheating and absorbing fat. Use with supervision for a short-
term cooking only.
Parchment paper
Use as a cover to prevent splattering or a wrap for steaming.
Plastic
Microwave-safe only. Follow the manufacturer’s instructions. Should be labelled
"Microwave Safe". Some plastic containers soften, as the food inside gets hot.
"Boiling bags" and tightly closed plastic bags should be slit, pierced or vented as
directed on the packaging.
Plastic wrap
Microwave-safe only. Use to cover food during cooking to retain moisture. Do not
allow plastic wrap to touch food.
Thermometers
Microwave-safe only
Wax paper
Use as a cover to prevent splattering and retain moisture.
Materials to be avoided in microwave oven
Utensils
Remarks
Aluminium tray
May cause arcing. Transfer food into microwave-safe dish.
Food carton with
metal handle
May cause arcing. Transfer food into microwave-safe dish.
Metal or metal
trimmed utensils
Metal shields the food from microwave energy. Metal trim may cause arcing.
Metal twist ties
May cause arcing and could cause a fire in the oven.
Paper bags
May cause a fire in the oven.
Plastic foam
Plastic foam may melt or contaminate the liquid inside when exposed to high
temperature.
Wood
Wood will dry out when used in the microwave oven and may split or crack.
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