The wine you grab from the wine shop is a complex beverage with intricate notes and flavors brought by different distillation, extraction and aging processes. The process of wine making basically involves yeast that will gradually convert the sugars in grape juice to alcohol. Because the climate affects the quality of the grapes, wine sourced from different vineyards will vary in texture, color and flavor. Wine making is a process refined and perfected over thousands of years. Here is a general idea on wine is made. This will make you appreciate a wine shop better.
Basically, wine making involves five major processes, namely grape picking, grape crushing, fermentation, aging and bottling. Grape picking is either done by people or machines. In warmer regions, grapes are picked at night to maintain consistent sugar levels. Freshly picked grapes are still attached to the stems along with a few leaves so before crushing them, the harvested grapes will be first sorted manually to make sure they are void of stalks and leaves. Next, the grapes are crushed by a machine. The process of making white wine involves removal of the grape skin and filtration of the extracted juice to remove any sediment. Grapes for red wine are lightly crushed along with the skin sans filtration. Once crushing is complete, the juices are transferred to big vats to be fermented. The vat can be made out of steel or oak barrels. Wine can be fermented with yeast or carbon dioxide. The aging process takes at least 18 months to be complete