Drinking water

Despite the fact that most beverages, including juice, soft drinks, and carbonated drinks, have some form of water in them; water itself is often not classified as a beverage, and the word beverage has been recurrently defined as not referring to water.

Essential to the survival of all organisms, water has historically been an important and life-sustaining drink to humans. Excluding fat, water composes approximately 70% of the human body by mass. It is a crucial component of metabolic processes and serves as a solvent for many bodily solutes. Health authorities have historically suggested at least eight glasses, eight fluid ounces each, of water per day (64 fluid ounces, or 1.89 litres), and the British Dietetic Association recommends 1.8 litres.The United States Environmental Protection Agency has determined that the average adult actually ingests 2.0 litres per day. Distilled (pure) water is rarely found in nature. Spring water, a natural resource from which much bottled water comes, is generally imbued with minerals. Tap water, delivered by domestic water systems in developed nations, refers to water piped to homes through a tap. All of these forms of water are commonly drunk, often purified through filtration.

An alcoholic beverage is a drink containing ethanol, commonly known as alcohol, although in chemistry the definition of an alcohol includes many other compounds. Alcoholic beverages, such as wine, beer, and liquor have been part of human culture and development for 8,000 years.

History of wine

Archaeological evidence suggests that the earliest production of wine, made by fermenting grapes, took place in sites in Georgia and Iran, from as early as 6000 BC These locations are all within the natural area of the European grapevine Vitis vinifera. A 2003 report by archaeologists indicates a possibility that grapes were used together with rice to produce mixed fermented beverages in China as early as 7000 BC. Pottery jars from the Neolithic site of Jiahu, Henan were found to contain traces of tartaric acid and other organic compounds commonly found in wine. However, other fruits indigenous to the region, such as hawthorn, could not be ruled out. If these beverages, which seem to be the precursors of rice wine, included grapes rather than other fruits, these grapes were of any of the several dozen indigenous wild species of grape in China, rather than from Vitis vinifera, which were introduced into China some 6000 years later.

The oldest known evidence of wine production in Europe is dated to 4500 BC and comes from archaeological sites in Greece.The same sites also contain the world’s earliest evidence of crushed grapes. In Ancient Egypt, six of 36 wine amphoras were found in the tomb of King Tutankhamun bearing the name "Kha'y", a royal chief vintner. Five of these amphoras were designated as from the King's personal estate with the sixth listed as from the estate of the royal house of Aten.Traces of wine have also been found in central Asian Xinjiang, dating from the second and first millennia BC.

Market information

In medieval Europe, the Roman Catholic Church was a staunch supporter of wine since it was necessary for the celebration of Mass. In places such as Germany, beer was banned and considered pagan and barbaric, while wine consumption was viewed as civilised and a sign of conversion to ChristianityMonks in France made wine for years, storing it underground in caves to age. There is an old English recipe which survived in various forms (allowed by the King) until the nineteenth century for refining white wine using Bastard—bad or tainted bastardo wine.[18] Wine was forbidden during the Islamic Golden Age, until Geber and other Muslim chemists pioneered its distillation for cosmetic and medical uses.Wine is usually made from one or more varieties of the European species Vitis vinifera, such as Pinot Noir, Chardonnay, Cabernet Sauvignon, and Merlot. When one of these varieties is used as the predominant grape (usually defined by law as a minimum of 75% or 85%), the result is a varietal, as opposed to a blended, wine. Blended wines are not necessarily considered inferior to varietal wines; some of the world's most expensive wines, from regions like Bordeaux and the Rhone Valley, are blended from different grape varieties of the same vintage.

Wine can also be made from other species of grape or from hybrids, created by the genetic crossing of two species. Vitis labrusca (of which the Concord grape is a cultivar), Vitis aestivalis, Vitis rupestris, Vitis rotundifolia and Vitis riparia are native North American grapes usually grown for consumption as fruit or for the production of grape juice, jam, or jelly, but sometimes made into wine.

Europe classification

Hybridization is not to be confused with the practice of grafting. Most of the world's vineyards are planted with European V. vinifera vines that have been grafted onto North American species rootstock. This is common practice because North American grape species are resistant to phylloxera, a root louse that eventually kills the vine. In the late 19th century, Europe's vineyards were devastated by the bug, leading to massive vine deaths and eventual replanting. Grafting is done in every wine-producing country of the world except for Argentina, the Canary Islands and Chile, which are the only ones that have not yet been exposed to the insect.

In the context of wine production, terroir is a concept that encompasses the varieties of grapes used, elevation and shape of the vineyard, type and chemistry of soil, climate and seasonal conditions, and the local yeast cultures. The range of possibilities here can result in great differences between wines, influencing the fermentation, finishing, and aging processes as well. Many wineries use growing and production methods that preserve or accentuate the aroma and taste influences of their unique terroir.However, flavor differences are not desirable for producers of mass-market table wine or other cheaper wines, where consistency is more important. Such producers will try to minimize differences in sources of grapes by using production techniques such as micro-oxygenation, tannin filtration, cross-flow filtration, thin film evaporation, and spinning cones.

Vintage

Regulations govern the classification and sale of wine in many regions of the world. European wines tend to be classified by region (e.g. Bordeaux and Chianti), while non-European wines are most often classified by grape (e.g. Pinot Noir and Merlot). More and more, however, market recognition of particular regions is leading to their increased prominence on non-European wine labels. Examples of non-European recognized locales include Napa Valley in California, Willamette Valley in Oregon, Barossa Valley and Hunter Valley in Australia, Central Valley in Chile and Marlborough in New Zealand. Some blended wine names are marketing terms, and the use of these names is governed by trademark or copyright law rather than by specific wine laws. For example, Meritage (sounds like "heritage") is generally a Bordeaux-style blend of Cabernet Sauvignon and Merlot, and may also include Cabernet Franc, Petit Verdot, and Malbec. Commercial use of the term "Meritage" is allowed only via licensing agreements with an organization called the "Meritage Association".

France has an appellation system based on the concept of terroir, with classifications which range from Vin de Table ("table wine") at the bottom, through Vin de Pays and Vin Délimité de Qualité Supérieure (VDQS) up to Appellation d'Origine Contrôlée (AOC). Portugal has something similar and, in fact, pioneered this technique back in 1756 with a royal charter which created the "Demarcated Douro Region" and regulated wine production and trade. Germany did likewise in 2002, although their system has not yet achieved the authority of those of the other countries'. Spain and Italy have classifications which are based on a dual system of region of origin and quality of product.

Beyond Europe

New World wine—wines from outside of the traditional wine growing regions of Europe tend to be classified by grape rather than by terroir or region of origin, although there have been non-official attempts to classify them by quality.

A "vintage wine" is one made from grapes that were all or mostly grown in a particular year, and labeled as such. Most countries allow a vintage wine to include a portion that is not from the labeled vintage. Variations in a wine's character from year to year can include subtle differences in color, palate, nose, body and development. High-quality red table wines can improve in flavor with age if properly stored. Consequently, it is not uncommon for wine enthusiasts and traders to save bottles of an especially good vintage wine for future consumption.

In the United States, for a wine to be vintage dated and labeled with a country of origin or American Viticultural Area (AVA) (such as "Sonoma Valley"), it must contain at least 95% of its volume from grapes harvested in that year.If a wine is not labeled with a country of origin or AVA the percentage requirement is lowered to 85%. Vintage wines are generally bottled in a single batch so that each bottle will have a similar taste. Climate can have a big impact on the character of a wine to the extent that different vintages from the same vineyard can vary dramatically in flavor and quality. Thus, vintage wines are produced to be individually characteristic of the vintage and to serve as the flagship wines of the producer.

Wine tasting

Vintage wines are generally bottled in a single batch so that each bottle will have a similar taste. Climate can have a big impact on the character of a wine to the extent that different vintages from the same vineyard can vary dramatically in flavor and quality. Thus, vintage wines are produced to be individually characteristic of the vintage and to serve as the flagship wines of the producer. Superior vintages, from reputable producers and regions, will often fetch much higher prices than their average vintages. Some vintage wines, like Brunellos, are only made in better-than-average years.

Non-vintage wines can be blended from more than one vintage for consistency, a process which allows wine makers to keep a reliable market image and maintain sales even in bad years. One recent study suggests that for normal drinkers, vintage year may not be as significant to perceived wine quality as currently thought, although wine connoisseurs continue to place great importance on it. Wine tasting is the sensory examination and evaluation of wine. Wines are made up of chemical compounds which are similar or identical to those in fruits, vegetables, and spices. The sweetness of wine is determined by the amount of residual sugar in the wine after fermentation, relative to the acidity present in the wine. Dry wine, for example, has only a small amount of residual sugar. Inexperienced wine drinkers often tend to mistake the taste of ripe fruit for sweetness when, in fact, the wine in question is very dry.