The process of converting vegetable oil into biodiesel fuel is called transesterification or neutralizing the free fatty acids in oil, removing the glycerol, and creating an alcohol ester. This is accomplished by mixing methanol with sodium hydroxide or potassium Hydroxide, to make sodium (or potassium) methoxide. This liquid is then mixed into vegetable oil. The entire mixture then settles. Glycerol is left on the bottom and methyl esters, or biodiesel, is left on top. Finally, the methyl esters is washed, filtered and refined.

Go Green Bio-Energy uses UCO (Used Cooking Oil) as the feedstock. This ensures that valuable farming land is not used for the production of oil producing crops for the manufacture of Biofuels