Abstract: A system for making a biodiesel fuel using a biofuel reactor with at least one chamber and at least a two atomizers in each chamber, at least one atomizer with biofuel feedstock nozzles, and a second atomizer with alcohol with catalyst nozzles to simultaneously atomize and quickly react the biofuel feedstock with the alcohol with catalyst. A polyol separator separates the microparticles into a crude polyol stream and a crude biodiesel stream, and a conduit with an inlet introduces water to the crude biodiesel stream. A separator is used to separate a first portion of water from the crude biodiesel stream forming a washed crude biodiesel with a second portion of washing water, and a heat exchanger is used to form dried biodiesel and wash water vapor. A cooler cools the dried biodiesel, and a filter is used to remove particles from the cooled biodiesel forming the biodiesel.