Technical Abstract: The objective of this book is to provide a thorough summary of all aspects of DDGS, ranging from the corn kernel itself all the way through end use. The broad topic of distillers grains intersects a variety of disciplines, including physics, chemistry, microbiology, biology, animal science, as well as engineering and economics. This book will tie these diverse areas together. As the industry continues to evolve, new manufacturing processes will undoubtedly change how ethanol is produced, but will also impact the resulting DDGS. It is undeniable that ethanol production cannot be successful without the distillers grains. As the industry moves forward, it is important to have a solid reference base from which to work.