All of the products in the SoyGold^® family begin as methyl esters. Methyl esters are made through transesterification, a chemical process in which the glycerin is removed from the vegetable oil (soybean or canola). The virgin oil is reacted at relatively low temperature (150 F) and pressure (20 psi) with an alcohol (methanol) in the presence of a catalyst (sodium or potassium hydroxide) producing glycerin and methyl esters. Products are differentiated by distillation levels, feed stock and/or the additives (anti-oxidants, surfactants, etc.) incorporated in each variation.