For more information on Rothsay’s Biodiesel, call 800-263-0302

How it’s made

Our biodiesel is made through a three-step process designed to deliver some of the purest biodiesel available. The first two steps combine a natural oil or fat with an alcohol such as methanol to transform the oil into two products - methyl ester (the chemical name for biodiesel) and glycerin. The third step, purification, removes any remaining impurities from the biodiesel. Crude glycerin is a co-product of the biodiesel production process, and is used in many industrial and consumer products.