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Dried Distillers Grains One bushel of corn produces 17 pounds of DDGS as well as 2.8 gallons of ethanol. It takes between 18-20 million bushels of corn to produce 50 million gallons of ethanol and 136,000 tons of DDG’s on average per year. While distiller grains can be fed to animals as either a wet (WDG) or dry feed (DDG). Lincolnway Energy produces dried and wet distiller grains. During the distillation process, liquid is separated from the mash and partially dehydrated into syrup. To create dried distiller grains with solubles (DDGS), the syrup is added back into the dried distiller grains. There are several advantages of DDGS. Drying them increases shelf life and improves the ability for them to be transported over longer distances. For example, the U.S. ethanol industry produces, on average, nearly 90,000 tons of distiller grains each week. While a portion of the distiller grains is sold domestically, a large portion is exported. On average, 600,000 tons a month are exported to countries such as China, Mexico, Canada, Spain, and Vietnam. |
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