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For millennia, wine has been made from only two incredients. They are grape juice and yeast. Any fruit juice can be used, as a matter of fact, but grape juice is the most frequently used.
Historically wine was the drink of choice because of the sometimes poor quality of the drinking water in so many regions. Today, of course, we tend to open a bottle of fine wine at times of celebration or offer it as a welcome gift as part of a wine giftbasket.
How is wine made?
Yeast is the magical ingredient that turns grape juice into wine. Interestingly enough, there is actually wild yeast spores in the air and all that is really needed to make wine is an open container of grape juice and time. The result however, would probably not be the most palatable of beverages.
There are numerous strains of yeasts and the types used to make wine have been cultured just for this purpose. The strain of the yeast has an impact upon the wine’s eventual flavor. Well anyway, yeast is a living organism that feeds off of sugars in the grape juice in a process called fermentation. It is the fermentation that causes the sugars in the grape juice to turn into alcohol.
The wine is removed from the original container and placed into another container in order to mature before bottling. The yeast stays in the original container.
There are black grapes and green grapes and grapes of various gradations in between. Regardless of the color of the grape the juice is always clear, or nearly so. If the skins are left in the juice during fermentation, a red wine is the result. A white wine results when the skins are removed.
What gives each wine its taste?
Even though there are very few ingredients, there are many things which influence the taste of wine. First of all, there are many varieties of grapes. Each grape variety will produce different flavors, aromas, and even textures. In addition, the soil and climate where the grapes are grown drastically affect these variables. Not only that, but the wine maker can control various things by the technique, temperature and yeast used during fermentation. Other variables such as fermenting or storing in oak barrels will also affect the taste.
It is because of all of these variables that a wine drinker can always notice a flavor difference from one wine to the next. This can make for an interesting hobby of never-ending discovery.
All wines have tannin. That is the component that provides that sort of drying feeling on the tongue. It comes from the stems, seeds and skins, so red wines will have more tannin than will white wines. That accounts for the different tactile feeling between reds and whites.
Because of the brevity of this description, this has been only a tiny overview of what there is to know about wine. Hopefully, though, it has given you a few nuggets for your conversation at the next wine and cheese tasting that you attend.