Blending (alcohol production)

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Blending is a technique to produce wine or other alcoholic beverages such as gueuze consisting in mixing different brews.

Wine alcoholic drink made from grapes

Wine is an alcoholic drink made from fermented grapes. Yeast consumes the sugar in the grapes and converts it to ethanol, carbon dioxide, and heat. Different varieties of grapes and strains of yeasts produce different styles of wine. These variations result from the complex interactions between the biochemical development of the grape, the reactions involved in fermentation, the terroir, and the production process. Many countries enact legal appellations intended to define styles and qualities of wine. These typically restrict the geographical origin and permitted varieties of grapes, as well as other aspects of wine production. Wines not made from grapes include rice wine and fruit wines such as plum, cherry, pomegranate, currant and elderberry.

Gueuze

Gueuze is a type of lambic, a Belgian beer. It is made by blending young (1-year-old) and old lambics, which is bottled for a second fermentation. Because the young lambics are not fully fermented, the blended beer contains fermentable sugars, which allow a second fermentation to occur.

In the case of rosé wine production, it is one of the techniques used, consisting to mix a white wine with some red wine.

In the case with single-vintage, single-varietal wines, the grapes harvested may be from the same yield, but fermented from different batches. [1]

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Syrah, also known as Shiraz, is a dark-skinned grape variety grown throughout the world and used primarily to produce red wine. In 1999, Syrah was found to be the offspring of two obscure grapes from southeastern France, Dureza and Mondeuse Blanche. Syrah should not be confused with Petite Sirah, a cross of Syrah with Peloursin dating from 1880.

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Winemaking the production of wine, starting with the selection of the fruit, its fermentation into alcohol, and the bottling of the finished liquid

Winemaking or vinification is the production of wine, starting with the selection of the fruit, its fermentation into alcohol, and the bottling of the finished liquid. The history of wine-making stretches over millennia. The science of wine and winemaking is known as oenology. A winemaker may also be called a vintner. The growing of grapes is viticulture and there are many varieties of grapes.

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Hybridisation may refer to:

Grignolino is a red Italian wine grape variety commonly grown in the Piedmont region. It makes light colored wines and rosés with very fruity aromas, strong acidity and tannins. The name Grignolino derives from the word grignole which means "many pips" in the local Piedmontese dialect of the Asti region. The abundance of pips, or seeds, contribute to the strong, bitter tannins associated with the wine. Modern winemaker try to avoid the excess tannins with gentle and slow pressings. Grignolino has two Denominazione di origine controllata (DOCs) that produce wine from it - Asti and Monferrato Casale.

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Carbonic maceration

Carbonic maceration is a winemaking technique, often associated with the French wine region of Beaujolais, in which whole grapes are fermented in a carbon dioxide rich environment prior to crushing. Conventional alcoholic fermentation involves crushing the grapes to free the juice and pulp from the skin with yeast serving to convert sugar into ethanol. Carbonic maceration ferments most of the juice while it is still inside the grape, although grapes at the bottom of the vessel are crushed by gravity and undergo conventional fermentation. The resulting wine is fruity with very low tannins. It is ready to drink quickly but lacks the structure for long-term aging. In the most extreme case, such as with Beaujolais nouveau, the period between picking and bottling can be less than six weeks.

Red wine type of wine

Red wine is a type of wine made from dark-colored (black) grape varieties. The actual color of the wine can range from intense violet, typical of young wines, through to brick red for mature wines and brown for older red wines. The juice from most purple grapes is greenish-white, the red color coming from anthocyan pigments present in the skin of the grape; exceptions are the relatively uncommon teinturier varieties, which produce a red-colored juice. Much of the red-wine production process therefore involves extraction of color and flavor components from the grape skin.

Rhône wine

The Rhône wine region in Southern France is situated in the Rhône valley and produces numerous wines under various Appellation d'origine contrôlée (AOC) designations. The region's major appellation in production volume is Côtes du Rhône AOC.

Rosé type of wine

A rosé is a type of wine that incorporates some of the color from the grape skins, but not enough to qualify it as a red wine. It may be the oldest known type of wine, as it is the most straightforward to make with the skin contact method. The pink color can range from a pale "onion-skin" orange to a vivid near-purple, depending on the varietals used and winemaking techniques. There are three major ways to produce rosé wine: skin contact, saignée, and blending. Rosé wines can be made still, semi-sparkling or sparkling and with a wide range of sweetness levels from highly dry Provençal rosé to sweet White Zinfandels and blushes. Rosé wines are made from a wide variety of grapes and can be found all around the globe.

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In chemistry, sigma bonds are the strongest type of covalent chemical bond. They are formed by head-on overlapping between atomic orbitals. Sigma bonding is most simply defined for diatomic molecules using the language and tools of symmetry groups. In this formal approach, a σ-bond is symmetrical with respect to rotation about the bond axis. By this definition, common forms of sigma bonds are s+s, pz+pz, s+pz and dz2+dz2 . Quantum theory also indicates that molecular orbitals (MO) of identical symmetry actually mix or hybridize. As a practical consequence of this mixing of diatomic molecules, the wavefunctions s+s and pz+pz molecular orbitals become blended. The extent of this mixing depends on the relative energies of the MOs of like symmetry.

Blending may refer to:

Tannat varietal

Tannat is a red wine grape, historically grown in South West France in the Madiran AOC, and is now one of the most prominent grapes in Uruguay, where it is considered the "national grape". It is also grown in Argentina, Australia, Brazil, Peru, South Africa, Bolivia, and in the Italian region of Apulia, where it is used as a blending grape. In the US states of Maryland and Virginia, there are small experimental plantings of the vine, and plantings in California have increased dramatically in the first years of the 21st Century. It also shows great promise in Arizona and Oregon. Tannat wines produced in Uruguay are usually quite different in character from Madiran wines, being lighter in body and lower in tannins. It is also used to make Armagnac and full bodied rosé. In France, efforts to solve the harsh tannic nature of the grape led to the development of the winemaking technique known as micro-oxygenation.

Wine fraud

Wine fraud relates to the commercial aspects of wine. The most prevalent type of fraud is one where wines are adulterated, usually with the addition of cheaper products and sometimes with harmful chemicals and sweeteners.

Ontario wine

Ontario wine is Canadian wine produced in the province of Ontario that is certified by VQA Ontario. Wines made from 100% Ontario grapes can qualify for classification under Ontario's appellation system, the Vintners Quality Alliance (VQA), and must be certified by the provincial wine authority to use the descriptor "Ontario wine" and other regulated labelling terms. VQA regulates production standards including grape varietals, wine-making techniques employed, and other requirements and ensures label integrity for consumers. This has raised some issues with certain wineries that do not meet the VQA standard or are not eligible because they use Ontario grown winter-hardy hybrid grapes that are not recognized by VQA despite lobbying attempts to update their list of acceptable grape varieties.

Stem mixing and mastering

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Cristom Vineyards

Cristom Vineyards is an Oregon wine producer and vineyard based near Salem, U.S. It is in the Eola-Amity Hills wine region within the Willamette Valley AVA, about 6 miles (9.7 km) northwest of Keizer.

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