The diagram below shows how ethanol fuel is produced from corn.

The diagram illustrates the man-made process in which a factory uses corn to fabricate ethanol fuel which later is delivered for sale.

Overall

, there are 9 steps in the operation, beginning with collecting corn from the farm and ending with storing the finished product at the gas station to use by customers.

To begin

with, corn is harvested from the farm and

then

stored in the warehouse for preservation.

Following

this

, once milling the material into a powder has been completed, water is added to the powder before being cooked for four hours. After that, it undergoes a progress of fermentation which takes around 48 hours to complete. Afterwards, the fermented product is put through a separation step in order to get the liquid which is called raw ethanol and the solid which is called the by-product of the process.

Subsequently

, a five-hour purification stage is conducted to obtain purified ethanol fuel.

Finally

, the finished products are stored until it is shipped by truck to the market for commercial.