Distillers grains

Distillers grains are 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). Corn-based distillers grains from the ethanol industry are commonly sold as a high protein livestock feed that increases efficiency and lowers the risk of subacute acidosis in beef cattle.[1]

Recently, studies indicate that DDGS as a food source for human consumption may have some benefit in reducing heart disease risk.[2]

Wet and dry distillers grains

There are two common types of distillers grains.


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 one week. The solids remaining after fermentation are the distillers grains.

The conversion rate of grains to ethanol and distillers grains varies with the different types of grains and the process used. The details are outlined below:

See also


External links

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