Wet and Dry Distillers Grains
There are two common types of distillers grains.
- Wet Distillers Grains (WDG) contain primarily unfermented grain residues (protein, fibre, fat and up to 70% moisture. WDG has a shelf life of four to five days. Due to the water content, WDG transport is usually economically viable within 200 km of the ethanol production facility.
- Dried Distillers Grains with Solubles (DDGS) is WDG that has been dried with the concentrated thin stillage to 10-12 per cent moisture (Figure 1). DDGS have an almost indefinite shelf life and may be shipped to any market regardless of its proximity to an ethanol plant. Drying is costly, as it requires further energy input. In the US, it is packaged and traded as a commodity product
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Famous quotes containing the words wet, dry and/or grains:
“I have a vocabulary all my own. I “pass the time” when it is wet and disagreeable. When it is fine I do not wish to pass it; I ruminate it and hold on to it. We should hasten over the bad, and settle upon the good.”
—Michel de Montaigne (1533–1592)
“‘Tis not such lines as almost crack the stage
When Bajazet begins to rage;
Nor a tall met’phor in the bombast way,
Nor the dry chips of short-lunged Seneca.
Nor upon all things to obtrude
And force some odd similitude.
What is it then, which like the power divine
We only can by negatives define?”
—Abraham Cowley (1618–1667)
“Deep with the first dead lies London’s daughter,
Robed in the long friends,
The grains beyond age, the dark veins of her mother,
Secret by the unmourning water
Of the riding Thames.
After the first death, there is no other.”
—Dylan Thomas (1914–1953)