Abstract: In embodiments of the present invention, systems for producing a biodiesel product from multiple feedstocks may include a biodiesel reactor, a decanter, a flash evaporator and a distillation column. In other embodiments of the present invention, a process for producing a biodiesel comprises distilling a biodiesel reaction product to remove tocopherols and sterol glucosides and, optionally, adding biodiesel stabilizers to the resultant biodiesel to enhance thermal stability. The components of the system are interrelated so that parameters may be regulated to allow production of a custom biodiesel product.