Home / Buying & Selling / DDGS / User Handbook / Chapter 3: Dry-Grind Production of Ethanol, Distillers Corn Oil, and Corn Co-Products Chapter 3: Dry-Grind Production of Ethanol, Distillers Corn Oil, and Corn Co-Products Chapter 3: Dry-Grind Production of Ethanol, Distillers Corn Oil, and Corn Co-Products