TECHNOLOGY FOCUS - INORGANIC CHEMISTRY - Preferred Components: The catalyst is tungstated zirconia, sulfated zirconia, zinc stearate, aluminum dodecatungstophosphate, zinc and lanthanum oxide mixtures, heteropolyacids or hydrotalcite catalysts. The catalyst is capable of catalyzing both transesterification of glycerides and esterification of fatty acids. The catalyst is on a support and the support comprises sol gel or metal oxide.    TECHNOLOGY FOCUS - INSTRUMENTATION AND TESTING - Preferred Components: The reaction vessel further comprises a vapor channel providing an alcohol vapor feedstream to the reaction vessel. The first channels provide a reaction zone and the second channels provide a decanting area and the decanting area comprises an electrostatic coalescer.    TECHNOLOGY FOCUS - ORGANIC CHEMISTRY - Preferred Process: The step of separating comprises: separating the glycerin from each reaction tray within a distillation column (21); and passing the product stream through an electric field sufficient to induce electrostatic coalescence of the glycerin. The process of creating biodiesel fuel meeting or exceeding American society for testing and materials D6751-10 specification further comprises: subjecting the product stream to at least one flash process comprising rapidly increasing the temperature of the fatty acid alkyl ester stream to 190-225 degrees C and removing water and/or the volatile material; rapidly cooling the product stream to 20-70 degrees C; storing the biodiesel in a vessel, where nitrogen gas is charged into the vessel so that the pressure in the vessel is higher than the outside atmosphere; and physically adjusting the vessel so that the biodiesel remains homogenous in nature without striation. The process of preparing biodiesel meeting or exceeding biodiesel standard American society for testing and materials D6751-10 from a feedstock comprising fatty acids and glycerides further comprises: separating the water from the alcohol vapor and recycling the alcohol to the reaction vessel; and pre-treatment of the feedstream prior to introduction of the feedstream into the reaction vessel. The step of separating glycerin comprises passing the glycerin through an electric field to induce electrostatic coalescence of the glycerin. The flash process is an atmospheric flash process performed at atmospheric pressure. The flash process is a vacuum flash process performed at a pressure of 0.1-0.5 bar. Preferred Components: The volatile material is alcohol, color body, tocopherol, sterol, colorless hydrocarbon, phospholipid or metal. The biodiesel additive is cloud point additives, oxidation stability additives, anti-microbial additives, corrosion inhibitors or cetane additives. EXAMPLE - No suitable example given.