Where
does the color of wine come from? Most people think that the color
of the wine is the same as the color of the juice of the grape the
wine came from. The juice in a green grape is clear and the juice
in a dark red or black grape is also clear. Surprised? The color
of the wine comes from the color pigment that is in the skin of
the grape. White Zinfandel is a very sweet wine that is sort of
lightly clear pink in color and is made from the Zinfandel grape.
The Zinfandel grape is almost black in color. From the same grape,
you can also get a dark red hearty non-sweet wine. How does this
happen? In the white zinfaldel making process, the skin of the grape
is seperated from the rest of the grape and then the juice is squeezed
out. The result is that you eventually have a clear or pinkish wine
because very little of the color pigment from the grape gets into
the juice.
The
dark red hearty wines like a full Zinfandel wine, a Cabernet Sauvignon
or a Merlot get their color from the skin of the grape being allowed
to remain on the grape when it is pressed. The skins are also present
when the juice goes to the fermentation process. The interaction
of the skins and the juice causes the color pigment from the skins
to saturate the juice with the color pigment. The juice is sweet
and the skins are not. The skins of the grape and everything that
makes up the grape skin we will call for now "Tannins".
The tannins in the wine cause the wine to not be sweet but bitter.
This does however, have a positive affect. The tannins in the wine
will help stabitize the wine giving it a longer shelf life.