Monday, April 20, 2015

Grape varieties CABERNET SAUVIGNON and SANGIOVESE

Cabernet Sauvignon is one of the world's most widely recognized red wine grape varieties. It is grown in nearly every major wine producing country among a diverse spectrum of climates from Canada's Okanagan Valley to Lebanon's Beqaa Valley. Cabernet Sauvignon became internationally recognized through its prominence in Bordeaux wines where it is often blended with Merlot and Cabernet Franc.
In many aspects, Cabernet Sauvignon can reflect the desires and personality of the winemaker while still presenting familiar flavors that express the typical character of the variety. The most pronounced effects are from the use of oak during production. Typically the first winemaking decision is whether or not to produce a varietal or blended wine.
The Cabernet Sauvignon grape itself is very small, with a thick skin, creating a high 1:12 ratio of seed (pip) to fruit (pulp).[14] From these elements the high proportions of phenols and tannins can have a stark influence on the structure and flavor of the wine—especially if the must is subjected to long periods of maceration (skin contact) before fermentation.
One of the most noted traits of Cabernet Sauvignon is its affinity for oak, either during fermentation or in barrel aging. In addition to having a softening effect on the grape's naturally high tannins, the unique wood flavors of vanilla and spice complement the natural grape flavors of blackcurrant and tobacco.
Winemakers can also control the influence of oak by using alternatives to the standard barrique barrels. Larger barrels have a smaller wood-to-wine ratio and therefore less pronounced oak flavors.
The style of Cabernet Sauvignon is strongly influenced by the ripeness of the grapes at harvest. When more on the unripe side, the grapes are high in pyrazines and will exhibit pronounced green bell peppers and vegetal flavors. When harvested overripe the wines can taste jammy and may have aromas of stewed blackcurrants. Some winemakers choose to harvest their grapes at different ripeness levels in order to incorporate these different elements and potentially add some layer of complexity to the wine. When Cabernet Sauvignon is young, the wines typically exhibit strong fruit flavors of black cherries and plum. The aroma of blackcurrants is one of the most distinctive and characteristic element of Cabernet Sauvignon that is present in virtually every style of the wine across the globe. Styles from various regions and producers may also have aromas of eucalyptus, mint and tobacco. As the wines age they can sometimes develop aromas associated with cedar, cigar boxes and pencil shavings. In general New World examples have more pronounced fruity notes while Old World wines can be more austere with heightened earthy notes.
Cabernet Sauvignon is a very bold and assertive wine that has potential to overwhelm light and delicate dishes. The wine's high tannin content as well as the oak influences and high alcohol levels associated with many regional styles play important roles in influencing how well the wine matches with different foods. When Cabernet Sauvignon is young, all those elements are at their peak, but as the wine ages it mellows; possibilities for different food pairings open up. In most circumstances, matching the weight (alcohol level and body) of the wine to the heaviness of the food is an important consideration.

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Sangiovese is a red Italian wine grape variety that derives its name from the Latin sanguis Jovis. Sangiovese has shown itself to be adaptable to many different types of vineyard soils but seems to thrive in soils with a high concentration of limestone, having the potential to produce elegant wines with forceful aromas.
The grape requires a long growing season, as it buds early and is slow to ripen. The grape requires sufficient warmth to ripen fully, but too much warmth and its flavors can become diluted.
For the best quality, yields need to be kept in check as the vine is notably vigorous and prone to overproduction. In Chianti, most quality conscious producers limit their yields to 3 pounds (1.5 kg) of fruit per vine. Wine made from high-yielding vines tend to produce wines with light color, high acidity, and less alcohol, which are likely to oxidize ("brown") prematurely due to a lower concentration of tannins and anthocyanins (anti-oxidants). Fully developed grapes are typically 19 mm long x 17 mm wide, with an average weight of 3 grams.
Wines made from Sangiovese tend to exhibit the grape's naturally high acidity as well as moderate to high tannin content and light color. Blending can have a pronounced effect on enhancing or tempering the wine's quality. The dominant nature of Cabernet can sometimes have a disproportionate influence on the wine, even overwhelming Sangiovese character with black cherry, black currant, mulberry and plum fruit. Even percentages as low as 4 to 5% of Cabernet Sauvignon can overwhelm the Sangiovese if the fruit quality is not high. As the wine ages, some of these Cabernet dominant flavors can soften and reveal more Sangiovese character.

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