How is pure alcohol made?

Pure alcohol, typically ethanol, is produced primarily through fermentation and distillation processes. During fermentation, yeast converts sugars from sources like grains or fruits into alcohol and carbon dioxide. The resulting liquid, containing around 10-15% alcohol, is then distilled to separate the alcohol from water and other components, concentrating it to a higher purity. Further distillation and purification can yield nearly pure ethanol, often used for industrial or laboratory purposes.