Take a look at the label on almost any bottle of milk and you may see the word PASTEURIZED.
Take
a
look
at
the
label
on
almost
any
bottle
of
milk
and
you
may
see
the
word
PASTEURIZED
.
What does that mean?
What
does
that
mean
?
Let's find out by meeting Louis Pasteur.
Let
's
find
out
by
meeting
Louis
Pasteur
.
Louis Pasteur was born in 1822 in a little town in France.
Louis
Pasteur
was
born
in
1822
in
a
little
town
in
France
.
As he grew up, he loved to paint.
As
he
grew
up
,
he
loved
to
paint
.
He loved to look at the world around him.
He
loved
to
look
at
the
world
around
him
.
When he went to college in Paris, he showed interest in looking through a microscope.
When
he
went
to
college
in
Paris
,
he
showed
interest
in
looking
through
a
microscope
.
A microscope makes things look a lot bigger; it lets you see things you can't see just with your eyes.
A
microscope
makes
things
look
a
lot
bigger
;
it
lets
you
see
things
you
ca
n't
see
just
with
your
eyes
.
Looking through a microscope, Pasteur found a living world in a drop of water.
Looking
through
a
microscope
,
Pasteur
found
a
living
world
in
a
drop
of
water
.
He saw and drew pictures of the small living things--he called them "microbes" or "germs"--that crowded in a drop of water.
He
saw
and
drew
pictures
of
the
small
living
things
--
he
called
them
``
microbes
''
or
``
germs
''
--
that
crowded
in
a
drop
of
water
.
One day a winemaker came into the lab, hoping that someone could help him with his problem.
One
day
a
winemaker
came
into
the
lab
,
hoping
that
someone
could
help
him
with
his
problem
.
"Sometimes my wine tastes delicious, but sometimes terrible," he said to Pasteur.
``
Sometimes
my
wine
tastes
delicious
,
but
sometimes
terrible
,
''
he
said
to
Pasteur
.
"Can you help me find out why?"
``
Can
you
help
me
find
out
why
?
''
Pasteur put some drops of the wine under the microscope.
Pasteur
put
some
drops
of
the
wine
under
the
microscope
.
He noticed that the terrible wine had some unusual germs.
He
noticed
that
the
terrible
wine
had
some
unusual
germs
.
If he killed these germs, maybe he could keep the wine from turning terrible.
If
he
killed
these
germs
,
maybe
he
could
keep
the
wine
from
turning
terrible
.
He tried with different ways to kill the germs.
He
tried
with
different
ways
to
kill
the
germs
.
In the end he found heating the wine seemed to work best.
In
the
end
he
found
heating
the
wine
seemed
to
work
best
.
The winemaker tried it, and every bottle of wine tasted good.
The
winemaker
tried
it
,
and
every
bottle
of
wine
tasted
good
.
Pasteur's idea worked for other people, too.
Pasteur
's
idea
worked
for
other
people
,
too
.
When farmers heated milk, it didn't turn bad so quickly.
When
farmers
heated
milk
,
it
did
n't
turn
bad
so
quickly
.
When breweries heated beer, it tasted better.
When
breweries
heated
beer
,
it
tasted
better
.
People called it "pasteurization"---heating a liquid to kill bad germs.
People
called
it
``
pasteurization
''
--
-heating
a
liquid
to
kill
bad
germs
.
Aren't you glad that the milk you drink has been pasteurized?
Are
n't
you
glad
that
the
milk
you
drink
has
been
pasteurized
?
Take a look at the label on almost any bottle of milk and you may see the word PASTEURIZED. What does that mean? Let's find out by meeting Louis Pasteur.  Louis Pasteur was born in 1822 in a little town in France. As he grew up, he loved to paint. He loved to look at the world around him. When he went to college in Paris, he showed interest in looking through a microscope. A microscope makes things look a lot bigger; it lets you see things you can't see just with your eyes. Looking through a microscope, Pasteur found a living world in a drop of water. He saw and drew pictures of the small living things--he called them "microbes" or "germs"--that crowded in a drop of water.  One day a winemaker came into the lab, hoping that someone could help him with his problem. "Sometimes my wine tastes delicious, but sometimes terrible," he said to Pasteur. "Can you help me find out why?"  Pasteur put some drops of the wine under the microscope. He noticed that the terrible wine had some unusual germs. If he killed these germs, maybe he could keep the wine from turning terrible. He tried with different ways to kill the germs. In the end he found heating the wine seemed to work best. The winemaker tried it, and every bottle of wine tasted good.  Pasteur's idea worked for other people, too. When farmers heated milk, it didn't turn bad so quickly. When breweries heated beer, it tasted better. People called it "pasteurization"---heating a liquid to kill bad germs. Aren't you glad that the milk you drink has been pasteurized?