Get a brief overview of wine basics with the Great Wines Online!
Each of us is evolving in our personal cultural experience. Perhaps you too have come to
the place where you're ready to experience more adventure as a connoisseur. There is
culture in wine. It can be found in the ritual of drinking it, appreciating the craft of
the winemaker, and in the wine's stimulation to our taste buds. And now, let us pursue the
pure taste enjoyment of wine.
When we drink wine, our taste buds are stimulated in a unique way and the alcohol has a
calming effect on the brain. Human taste has four components: sweetness, saltiness, acidity
and bitterness. The acidity and sweetness in wine are the two factors that balance together
to produce a pleasant sensation on our sense of taste. We taste the acidity with the middle
of the tongue and sweetness with the tip of the tongue.
Wines with excessive acidity taste harsh, those with insufficient acidity taste uninteresting
and their flavor does not linger in the mouth long enough. Tannins contribute to the
relationship of bitterness on the tongue. If you've ever chewed into grape seeds, then you've
tasted the dry bitterness of tannin. Wine with too much tannin is unpleasantly bitter. The
right level of tannin has an effect of bringing all the flavors together with a good "grip"
in the mouth. The various fruit-like flavors detectable in wine contribute nuances to the
sweetness we taste. It's fun trying to detect different fruit characteristics, such as
berries, plums, apples, pears...
Our other senses are involved as well. Our sight enjoys the color and our sense of smell
enjoys the fragrances. Much of a wine's character is revealed only through the aroma it
exudes. This adds richly to the dimensions found in wine.
Wine Grape Varieties
There are many species of grapes, but most of the world's wine is made from the Vitis
vinifera family, of European origin. Wine grapes have various unique, signature
characteristics. Check out the following varietal grapes:
Popular Red Varieties
§ Cabernet Sauvignon
§ Pinot Noir
§ Syrah (Shiraz)
Popular White Varieties
§ Grüner Veltliner
§ Pinot Blanc
§ Sauvignon Blanc
How Wine is Made
Wine grapes, Vitis vinifera, grow easily in any temperate to warm climate. A solution of
sugar and water develops in ripe grapes and the skins easily allow the growth of natural
yeasts. In the fermentation process, these single cell organisms consume the natural sugar
and change it into ethyl alcohol and carbon dioxide. This rather simple process has been
observed and used for thousands of years in human culture. In the past hundred years or so,
technology and new ideas from winemakers have played an ever-increasing role in the making
of wine. It's becoming more and more a science and an art.
Here are the basic principles of winemaking. The grapes are either harvested by hand
(this is best), or with mechanical harvesters. Exposure to air should be kept to a minimum
at all stages of the process. Sometimes powdered sulfites are sprinkled on the grapes prior
to crushing to prevent too much reaction with the air. The fermentation usually takes place
in open vats. Several processes may be employed to give the wine clarity: fining and
filtration for example. Shortly after fermentation has ended, the wine is transferred to a
settling tank where filtration and other clarification techniques may be used.
The Differences Between Red Wine and White Winemaking
There are significant differences between red wine and white wine production. Basically,
red wine is the outcome of crushed, fermented grapes. White wine is the outcome of fermented
grape juice (that is, no skins or meat of the fruit). Blush wines, out of interest, are made
from red grapes that are made into wine as though they were white grapes. The red grape skins
add a bit of color and nutrients to the juice being made into blush or rosé, leaving a slight
blush of red in the wine.
All grapes contain the same kind of green fruity-meat, but red grapes have red skins and in
the winemaking process, there is a considerable amount of color, flavors and tannins that
are imparted to the final product. After crushing, the red grapes, skins and all, sit in a
fermentation vat for a period of time. Picture a huge plastic bin with a mixture of crushed
grapes and juice with a layer of crushed wet skins on top. The skins tend to rise to the
surface of the mixture, forming a layer on top. This top layer is frequently mixed back into
the fermenting juice (called must). After fermentation has stopped, about one to two weeks
later, the new wine is drawn from the vat. A bit of "free run" juice is allowed to pour and
then the remaining must is squeezed, yielding "press wine". The wine is clarified and then
transferred to oak aging barrels so that it may mature. When the winemaker considers the
wine ready, it is transferred to bottles and labeled.
Right after picking, white grapes are put into a crushing machine. In the process, the skins
are separated from the juice, an important difference over the red wine process. Some
adjustments are sometimes made to the acid or sugar levels at this stage (the addition of
sugar is called "chaptalization"). The clarified juice is then ready for fermentation.
Yeast is then added to the juice for fermentation. Before long the white grape juice becomes
white wine. At this point, some further tinkering is usually called for: filtering, and
perhaps the addition of sweeter juice to round out the flavor. The wine is then aged by
storing in oak or stainless steel containers, and after a few months, it is bottled.