C2H5OH is the chemical form of alcohol. It can be Ethanol, or Ethyl Alcohol. The alcohol molecule consists of Carbon, Oxygen and Hydrogen.
Alcoholic beverages can be created either through fermentation or distillation. Yeast will, with a rare few exceptions, convert sugar to alcohol, carbon dioxide and energy up to about 15 percent proof. After that, the alcohol level becomes toxic to the yeast. All alcoholic beverages with more than 15 percent alcohol has been distilled or have had pure alcohol added. Wines can be mixed with alcohol that has been created through distillation of wine grapes – Port wine is an example of this.