Background
Wine is an alcoholic beverage produced through the partial or total fermentation of grapes. Other fruits and plants, such as berries, apples, cherries, dandelions, elder-berries, palm, and rice can also be fermented.
Grapes belong to the botanical family vitaceae, of which there are many species. The species that are most widely used in wine production are Vitis labrusca and, especially, Vitis vinifera, which has long been the most widely used wine grape throughout the world.
The theory that wine was discovered by accident is most likely correct because wine grapes contain all the necessary ingredients for wine, including pulp, juice, and seeds that possess all the acids, sugars, tannins, minerals, and vitamins that are found in wine. As a natural process, the frosty-looking skin of the grape, called "bloom," catches the airborne yeast and enzymes that ferment the juice of the grape into wine.
The cultivation of wine grapes for the production of wine is called "viticulture." Harvested during the fall, wine grapes may range in color from pale yellow to hearty green to ruby red.
Wine can be made in the home and in small-, medium- or large-sized wineries by using similar methods. Wine is made in a variety of flavors, with varying degrees of sweetness or dryness as well as alcoholic strength and quality. Generally, the strength, color, and flavor of the wine are controlled during the fermentation process.
Wine is characterized by color: white, pink or rose, and red, and it can range in alcohol content from 10 percent to 14 percent. Wine types can be divided into four broad categories: table wines, sparkling wines, fortified wines, and aromatic wines. Table wines include a range of red, white, and rose wines; sparkling wines include champagne and other "bubbly" wines; aromatic wines contain fruits, plants, and flowers; and fortified wines are table wines with brandy or other alcohol added.
The name of a wine almost invariably is derived from one of three sources: the name of the principal grape from which it was made, the geographical area from which it comes, or—in the case of the traditionally finest wines—from a particular vineyard or parcel of soil. The year in which a wine is made is only printed on bottles that have aged for two or more years; those aged less are not considered worthy of a date. Wine years are known as "vintages" or "vintage years." While certain wines are considered good or bad depending on the year they were produced, this can vary by locality.
In general, red wines are supposed to age from seven to ten years before being sold. Because white and rose wines are not enhanced by additional ageing, they are usually aged from only one to four years before being sold. And, since the quality of wine can depend on proper ageing, older wines are generally more expensive than younger ones. Other factors, however, can affect the quality of wine, and proper ageing does not always ensure quality. Other factors affecting quality include the grapes themselves, when the grapes are picked, proper care of the grapes, the fermentation process, as well as other aspects of wine production.
Most wineries bottle wine in different size bottles and have different product and graphic designs on their labels. The most common bottle sizes are the half bottle, the imperial pint, the standard bottle, and the gallon bottle or jug. Most red and rose wine bottles are colored to keep light from ageing the wine further after they are on the market.
While viticulture has remained much the same for centuries, new technology has helped increase the output and variety of wine.
HISTORY
Well documented in numerous Biblical references, evidence of wine can be traced back to Egypt as far as 5,000 B.C. Tomb wall paintings showing the use of wine as well as actual wine jars found in Egyptian tombs provide evidence of this fact. Because more northern climates and soil produce better wine, the growth of the wine industry can be traced from its emergence along the Nile River in Egypt and Persia northward into Europe and, eventually, to North America.
Though the wines of old were coarse and hard and had to be mixed with water, ancient Greek wine proved to be somewhat better than Egyptian wine. For this reason, Egyptians began importing it. Then Roman wines (from what would emerge to be Italy, Spain, and France) became notably superior. Eventually, French and German wines grew to be the most desirable, thereby shifting the center of wine production from the Mediterranean to central Europe. Some of the best wine in the world is still produced in southern France, particularly in the Bordeaux region, where wine has been made for more than 2,000 years.
The colonists brought wine production to the east coast of the New World by the mid-1600s. The earliest account of wine used in the New World may be when the Pilgrims fermented grapes to celebrate their first Thanksgiving in 1623. Settlers tried to grow imported grape cuttings they brought from Europe, but unfortunately the European cuttings had not developed immunities to the North American plant diseases that eventually killed them. By the middle of the nineteenth century (using the fruits of the abundant native Vitis labrusca grape plants) wineries were established in Pennsylvania, Virginia, Ohio, Indiana, Alabama, Mississippi, and North Carolina.
In 1697, European cuttings of Vitis vinifera grapes were successfully introduced to California by Franciscan priests at the Mission San Francisco Xavier. They soon became the dominant grape species in California wine making. A great boost to California wine making came from Colonel Agoston Haraszthy, a Hungarian nobleman, who introduced more high-quality European cuttings during the 1850s. His knowledge made him the founder of California's modern wine industry.
Today, California and New York state are by far the largest American producers of wine, and California is one of the largest wine producers in the world. Though many of its table wines are known for their quality, the enormous wineries of central and southern California produce gigantic quantities of neutral, bulk wines that they ship elsewhere to make specific wines, such as dessert wines, or to blend with other wines. They also make grape concentrates to fortify weaker wines and brandies that use large quantities of grapes.
Raw Materials
As mentioned above, the wine grape itself contains all the necessary ingredients for wine: pulp, juice, sugars, acids, tannins, and minerals. However, some manufacturers add yeast to increase strength and cane or beet sugar to increase alcoholic content. During fermentation, winemakers also usually add sulfur dioxide to control the growth of wild yeasts.
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