The four main flavors of wine are sweet, salty, sour, and bitter. While this is the four flavors your tongue is really capable of tasting, the long lasting impression that wine leaves in your mouth is far more complex. When drinking or tasting wine, your taste buds and your sense of smell are involved, adding to the way you construe wine overall. The flavors, aromas, and sensations that wine is comprised of provide the interaction that you taste when you sample wine.
Sweetness is an element that wines are well known for. Usually with most types of wine, grapes are responsible for the sweet taste. Grapes do contain a lot of sugar, which helps breaks the yeast down into alcohol. The grapes and yeast that were used to make the wine will leave behind various sugars, which your tongue will be able to quickly distinguish. As soon as your tongue detects these various sugars, the stimulation of sweetness from the wine will be ever so present in your mouth.
Even though your tongue doesn’t really know how to decipher the taste of alcohol, it is always present in wines. The alcohol present in wine will dilate blood vessels and hence intensify all of the other flavors...