Abstract: On January 3, 2008, Employee #1 worked near a 10,000-gallon above ground storage tank containing glycerin, which was heated using steam lines to liquefy the glycerin for transport. The glycerin contained methanol as a contaminant from biodiesel production and during heating, the methanol was released from the tank and built up inside the Quonset hut where the tank was stored. Employee #1 noticed smoke emitted from the tank's outside vent pipe; when he opened the door and activated the overhead door opener, the methanol vapor exploded, inducing a flash fire. The employee sustained first, second, and third degree burns on his hands, arms and face; he was hospitalized. Environmental conditions did not contribute to the accident.