In order to attain the highest quality and
optimal performance characteristics our biodiesel undergoes a purifying process of washing and drying to remove residual catalyst, soaps, or other possible water-soluble impurities. The crude glycerin, which results as a byproduct from the transesterification process, is acidified and evaporated to produce technical grade crude glycerin with up to 88% purity. For use in pharmaceuticals, plastics, food, or cosmetics industries, the glycerin is further distilled up to
99.7% purity (pharmaceutical grade glycerin).