The diagram illustrates the procedures and raw materials that are necessary to produce ethanol from corn, along with the products and by-products of the process.
Overall, corn has to pass through six important processes before eventually becoming ethanol fuel that is ready to be stored and transported. These processes include storing, milling, moderate hours of cooking and purifying, prolonged fermentation, separating and transporting for distribution.
In the first stage of the production of ethanol fuel, corn is stored. Afterwards, it goes through a process of milling. Corn is then mixed altogether with water and cooked for approximately four hours. Subsequently, the cooked mixture is fermented for a lengthy forty-eight hours before being separated into liquid. The separation process also leaves solids as a by-product. The liquid product is then purified into pure ethanol through a process taking five hours. Finally, the purified ethanol is then stored and transported for further use.