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How
microwave ovens work
Microwave ovens are safe Microwave energy IS not hot. It causes food to
make 11s own heat, and It’s this heat that cooks the food
Microwaves are llke TV
waves or light waves You
can’t see them but you can
see what they do
Mode Mixer
Magi
7e Iron
Oven Cavity
A magnetron in the micro-
wave oven produces
microwaves. The microwaves
move into the oven where
they are scattered or stirred
by a mode mixer (like a fan].
Mlcrowaves bounce off
metal oven walls and are
absorbed by food
Ceramic Bolt
MIcrowaves pass through
glass, paper and plasllc
wlthout heating them so tood
absorbs the energy Mlcro-
waves 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 This IS one of the
reasons for letting some
foods (roasts, baked pota-
toes) stand for a while after
cooklng, or for stirring some
foods during the cooking lime
Metal Bottom
The ceramic bottom of y
microwave oven lets mlc
waves through Then the\
bounce off a metal floor.
back through the ceram
bottom and are absorbe
the food
The mIcrowaves dlslurb
water molecules In Ihe f(
As the molecules bounc
around bumplng Into ec
other, heat IS made lake
bing your hands togethc
This IS the heat that cook
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