What exactly is ethanol?
How is it made and used? And is it really a viable alternative to gas? Here’s what you need to know now. What exactly is ethanol? The fuel is derived from plants through a fairly straightforward process. In one common method Corn, is first ground into a fine powder, mixed with water, and then heated. An enzyme is then added to convert the mixture into sugars before yeast is added to ferment it. The resulting liquid, called “beer,” is about 10% alcohol. A distillation process then separates the alcohol from the rest of the mixture before the remaining water is removed. The result is essentially pure alcohol. A small amount of gas is added to render the liquid undrinkable. Then the fuel can be used by itself or as a supplement to gasoline to power cars. Ethanol has three advantages, at least in theory: It’s renewable, it can be domestically produced, and it burns cleaner than gas. The world’s largest producers of ethanol are the U.S., which makes it primarily from corn, and Brazil, which
