I'm sure – or at least I hope – that a trained chef knows the definition of “carmelization.” A non-enzymatic, or oxidative, process, caramelization is a chemical reaction – pyrolysis – in food that produces a nutty flavor and a brown color. BUT it is a reaction solely related to non-reducing sugars in certain foods.
There
are two principal non-enzymatic browning processes. These are
chemical reactions that turn foods brown without the activity of
enzymes. By contrast, an apple turns brown when you cut it because of
enzymatic activity in the presence of oxygen. The non-enzymatic
processes are caramelization and the Maillard (MAH-yar) reaction.
I
really don't want to go into page after boring page detailing
disaccharides and monosaccharides and oligosaccharides and
polysaccharides and closed ring structures and aldehydes and ketones
and other stuff that blurs the vision and boggles the brain. So let's
keep it simple.
Caramelization
occurs when the aforementioned non-reducing sugars react to heat.
Sucrose
– common table sugar – is a non-reducing sugar. It begins to
caramelize at 320°.
The
rate of caramelization is affected by pH balance, with the lowest
rate occurring near neutral (pH7) levels and increasing as you go
more acidic – for example pH3 – or more basic, like pH9. But
there we go with all that mind-numbing scientific stuff again.
The
Maillard reaction, named for a French chemist who first demonstrated
it in 1910, occurs in the presence of amino acids. Sugars are
involved, but they are what is known as “reducing sugars.” The
carbonyl group of said sugar reacts with the amino group of the amino
acid to produce browning and flavor changes. This process occurs when
low moisture levels are present and temperatures reach around 310°.
Different amino acids produce different levels of browning.
Still
struggling to keep it simple, sugars are involved in both processes,
but they are different sugars, or carbohydrates – a word everybody
knows these days. The sugars that can caramelize are those that form
simple carbohydrates, such as those found in fruits and vegetables.
The sugars involved in the Maillard reaction are those that form the
complex carbohydrates found in meats and grains. The nice brown color
you see in toast, for instance, is not due to caramelization. It is a
Maillard reaction.
In
short – and simple – terms, there is no such thing as
“caramelizing” meat. When you apply heat you “caramelize”
fruits and vegetables to achieve changes in flavor and color, but
those changes in meat are due to an entirely different chemical
process. Since I've never heard anybody refer to “Maillard-izing”
a cut of meat, let's just call it “browning,” shall we?
And
a seasoned chef should know the difference. I sometimes think it's a
matter of a person trying to sound educated beyond his or her
intelligence or vice-versa. Given the choice between “caramelizing”
and “browning,” which word sounds more “cheffy?” Never mind
the people like me who sit and shout at the TV screen, “Idiota!
You
can't “caramelize” meat!” (Said people have to like to scream
things in Italian.) “Caramelize” is a nice cheffy-sounding word
that gets tossed around on TV a lot. But is it the correct
word
for all occasions? No. And with so many “Iron Chef” wannabes
watching TV to gain or improve their culinary skills, the people
imparting information on TV have to be especially careful to impart
correct
information,
lest we turn out millions of home cooks who try to impress their
friends and families by talking about how well “caramelized” the
roast is.
Love
ya, Michael, et.al., but it really is okay to just “brown”
something.
Yay, thank you. I went looking for someone on the web to explain this correctly. I'm SO SICK of Rachel Ray using "caramelize" interchangeably with "brown". I'm also sick of people like Sandra Lee pronouncing Mascarpone as "marscapone". These are highly paid "professionals"???.
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