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6.
Microwave Oven Use and Care Guide
Materials to Avoid
in a Microwave Oven
Aluminum pan or tray
Food carton with
metal handle
Metal or metal-trimmed
utensils
Metal twist ties
Plastic foam
Wood
May cause arcing. Transfer food into
microwave-safe dish.
May cause arcing. Transfer food into
microwave-safe dish.
Metal shields the food from microwave
energy and may cause arcing.
May cause arcing and could cause a
fire in the oven.
Plastic foam may melt or contaminate
the liquid inside when exposed to high
temperature.
Wood will dry out and may split. Avoid
using wooden containers or utensils in
the oven.
Cooking
Accessories
(not included
with Microwave) Remarks
How Your Microwave Oven Works
The microwave oven has an electronic tube called a magnetron that
produces microwaves, very short radio waves. The microwaves then
pass through a wave-guide and into the oven cavity. The microwaves
penetrate the food and cause water molecules within the food to
vibrate extremely rapidly. This vibration causes considerable friction
or heat between the water molecules resulting in a rapid rise in
temperature. This type of heating is very efficient and the cooking
time is therefore shorter than in a conventional oven.
TMW3504WCAN_IB_18-11-04 11/19/04 5:56 PM Page 6