“In China, the domestic DDGS is mainly a byproduct of liquor production, not ethanol, which is really a different product and not very consistent,” says Song. “There are not many consistent specifications or quality control measures taken in China, like what is done in the United States.”
Shadow believes that a decrease in ethanol subsidies may have lead to an increase in U.S. DDGS quality control.
“Now that some subsidies are no longer in place, ethanol producers are looking more into how to improve the efficiency of their processing,” says Shadow. “An efficient, consistent process creates a consistent co-product. DDGS importers will continue to buy if they can consistently receive the same product and reduce the need to reformulate. Through testing you’re able to increase the efficiency of the ethanol plant and the co-product quality and consistency.”
Ethanol plants in the United States have embraced the concept of quality control. Whether testing for protein, fat, fiber, moisture or toxins, characterizing and quantifying each of those components has helped deliver customer satisfaction across the globe.