Technology development initially favored using corn and sugarcane as feedstocks because it is relatively simple to convert the starches and sugars naturally present in these feedstocks to glucose, the necessary component to make ethanol. Conventional and cellulosic ethanol manufactures result in the same product, but are produced using different feedstocks and processes. Conventional ethanol is predominantly derived from corn grain, by far the largest grain crop grown in the United States. As corn yields increase, there continues to be ample corn grain for livestock feed, human food, and export to users in other countries, even considering that nearly 5 billion bushels used annually to produce fuel ethanol. Development of cellulosic ethanol processes has been driven by the need to augment corn-based ethanol, thereby allowing corn to be directed into animal diets and human food primarily. However, this strategy has not been necessary so far. Of more importance to the industry is the ability to further ferment the fibrous portion of the corn kernel to derive additional ethanol from each batch. Moreover, the ability to produce ethanol from “woody” wastes, such as paper from municipal waste, and the stalks and stover from field crops that is commonly left in the field after harvest.