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Distillers grains is a cereal byproduct of the distillation process.
There are two main sources of these grains. The traditional sources were from brewers. More recently, ethanol plants are a growing source. It is created in distilleries by drying mash, and is subsequently sold for a variety of purposes, usually as fodder for livestock (especially ruminants).
In beer or whiskey production grains such as corn are ground to a coarse consistency and added to hot water. After cooling, yeast is added and the mixture ferments for several days to a week. The solids remaining after fermentation are the distillers grains.
One bushel of corn produces 18 pounds (2.72 gallons) of ethanol and approximately 17 pounds of distillers grains in various forms:
|This article is licensed under the GNU Free Documentation License. It uses material from the Wikipedia article "Distillers_grains". A list of authors is available in Wikipedia.|