How your microwave oven works
Microwave ovens are safe Microwave energy IS not hot It causes food to make its own
heat. and its this heat that cooks the food
Mtcrowaves are like TV
waves or light waves You
can’t see them, but you can
see what they do
Mode Mixer
Magnetron
Ceramic Bottom
Oven.Cavity
A magnetron In the mrcro-
wave oven produces mtcro-
waves The mrcrowaves
move Into the oven where
they are scattered or starred
by a mode mixer (like a fan]
Mtcrowaves bounce off
metal oven walls and are
absorbed by food
Microwaves pass through
glass, paper and plastic with-
out heating them so food ab-
sorbs the energy Mrcrowaves
bounce off metal pans so
food does not absorb the
energy
Microwaves may not reach
the center of a roast The heat
around the outside IS what
cooks the roast all the way
through Thus IS one of the rea-
sons for letting some foods
[roasts, baked potatoes)
stand for a while after cook-
ing, or for stirring some foods
during the cooking time
Metal’Floor
The ceramic bottom of your
microwave oven lets micro-
waves through Then they
bounce off a metal floor,
back through the ceramic
bottom and are absorbed
bv
The microwaves disturb
water molecules in the food.
As the molecules bounce
around bumping into each
other, heat is made, like rub-
bing your hands together.
This is the heat that cooks.
14