The flowchart presents how ethanol fuel is made from corn.
Overall, the production of ethanol fuel involves storing and milling the corn, cooking it with water, fermenting, separating the liquid and solid by-products, purifying the liquid ethanol, and storing and transporting it. The process consists of several simple stages from raw material to a final product.
It starts with storing and milling the corn, then cooking it with water for four hours. Once it is cooked, it is then being fermented for 48 hours and separated into a solid byproduct or a liquid. Liquid is then being purified into ethanol for five hours, stored, and finally transformed.
Producing ethanol fuel from corn is a long process. Fermenting is the longest step in making ethanol fuel from corn. It needs 48 hours, whilst cooking the corn with water only takes 4 hours. We can also see that in the end the ethanol fuel is transported to a final destination.