what is alcohol
The alcohol that is consumed at bars or parties (ethyl alcohol, or ethanol) is created by fermentation, a process in which the yeast fungus feeds on the sugars and/or starches in certain plants â such as barley or grapes â and excretes alcohol along with carbon dioxide (CO 2).he alcohol that is consumed at bars or parties (ethyl alcohol, or ethanol) is created by fermentation, a process in which the yeast fungus feeds on the sugars and/or starches in certain plants â such as barley or grapes â and excretes alcohol along with carbon dioxide (CO 2).