E85 | Making Ethanol - 0 views
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Wheat or corn kernels are ground in a hammermill to expose the starch. The ground grain is mixed with water, cooked briefly and enzymes are added to convert the starch to sugar using a chemical reaction called hydrolysis. Yeast is added to ferment the sugars to ethanol. The ethanol is separated from the mixture by distillation and the water is removed from the mixture using dehydration.