The major flavor components in wine
Michael Briggs
There are only a few flavors your tongue is actually capable of tasting in wine, yet the overall impression of a wine in your mouth is much more complex than the four simple flavors of salty, sweet, bitter, and sour. This is because of the involvement of your nose and other aspects of wine that add to the overall mouthfeel. It is the interaction of these flavors, aromas, and sensations that build the overall taste of the wine.
Sweetness Grapes are a fruit and as such they contain large amounts of various sugars. It is these sugars that yeast break down and turn into alcohol. Depending on the grape and the yeast, a number of sugars are left behind in the finished wine and will be quickly detected by your tongue since the sweet receptors are right on the tip. The perception of sweetness will be greatly influenced by the other flavors in the wine. If the only part of your tongue being stimulated is the sweet receptor, then even a wine with low sugar content will taste sweet. While a wine with much higher sugar levels but also with some acidity and tannins will taste less sweet. Also, temperature can affect the perception of sweetness. A wine served cold from the refrigerator will be perceived as less sweet than a warmer one.
Alcohol Alcohol is created as a byproduct of yeast extracting energy from sugar in an environment devoid of oxygen. While your tongue does not have any specific receptors to taste alcohol, it does have a very pronounced effect on the mouth. Alcohol causes blood vessels to dilate and can increase the intensity of all the other flavors in the wine. And after a few samples it can also degrade your ability to taste, both due to its effect on the taste buds and on your mental strength. Wine without alcohol is almost always overly sweet, as one of the most important impacts it makes (aside from euphoria) is to balance sugars.
Acidity Like alcohol, acidity helps dramatically reign in the effects of sugar. Without some balance of sour flavors brought by acidity, wine would be cloying and virtually undrinkable; think mead if you have ever sampled it. As you taste a wine acidity will make itself known on the sides of your tongue. But too much acidity will make a wine sharp, or even chemical in nature depending the type of acid presence. But at the right levels, acidity will be the perfect compliment to the fruit sweetness of the grape and make the wine come alive with bright refreshing flavors.
Tannin Tannins are proteins found in the skin of many fruit, including grapes. They act to literally bind on the surface of your taste buds and mouth, and as such will give the sensation of a coating in your mouth and will reduce the ability to taste as effectively. But in the right levels, tannins will give wine a good mouth feel, and help mitigate the sensations from the other flavors. Over time, tannins slowly breakdown in the bottle as the wine ages into much softer versions that still give mouthfeel without being brash. Bordeaux's are probably the most famous for having very strong tannins when young, often requiring years of aging before becoming enjoyable.
Oak The last major flavor is not naturally found in wine or grapes. But as many wines spend some time agi ng in oak barrels they extract the flavors from these casks. Depending on the length of time spent in oak and the acidity of the wine, which increases its ability to extract oils from the wood, the oak characteristics can vary wildly. Most often oak is perceived as rich vanilla, spice, toffee, caramel, or even buttery flavors. Too long and harsher elements can be extracted that are perceived as menthol, cleanser, or solvent.
While there are other flavors that affect wine to lesser degrees, the above list represents those that you should get familiar with before trying to analyze wine for less important aspects.
About the author:
Michael Briggs is a wine fanatic and a frequent contributor to
Winery-Mall
where you can learn all about wine
enjoyment.
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