The process of making alcohol begins with fermentation, which is the conversion of sugars into alcohol by yeast. This process is carried out by yeasts, which are single-celled microorganisms that feed on sugars and produce alcohol as a byproduct of their metabolism.

The first step in fermentation is the breaking down of complex carbohydrates, such as starch, into simple sugars, such as glucose. This is done by enzymes produced by the yeast. Once the sugars are released, they are transported into the yeast cells, where they are converted into alcohol and carbon dioxide through a series of chemical reactions.

2. Distillation

After fermentation, the resulting liquid, which is called "wort" or "beer", contains alcohol, but it also contains other impurities, such as water, yeast, proteins, and various organic compounds. To obtain pure alcohol, the wort is distilled.

Distillation is the process of separating liquids based on their boiling points. The wort is heated in a still, which is a special apparatus designed for distillation. The alcohol, which has a lower boiling point than water, evaporates first and is then condensed back into a liquid. This process is repeated several times until the desired alcohol content is achieved.

3. Aging

Some types of alcohol, such as whiskey, brandy, and rum, are aged in wooden barrels. This process mellows the flavor and aroma of the alcohol and can add additional complexity and character. The type of wood used for the barrels, the length of the aging period, and the storage conditions all contribute to the final flavor of the aged alcohol.

4. Bottling and Labeling

Once the alcohol has been aged (if desired), it is bottled and labeled. The bottles are then sealed and shipped to distributors and retailers, where they are sold to consumers.