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Prewashing Biodiesel with 5% Water

Introduction A 5% water prewash is a way to give your biodiesel a preliminary wash after the reaction is finished but BEFORE draining off the glycerol byproduct. Performing a 5% water prewash stops the transesterification reaction dead in its tracks by drawing much of...

The 3/27 Conversion Test

Introduction: Over the past year, there’s been a quiet revolution in biodiesel homebrewing quality control. On July 7, 2006 a new test was introduced, with experiments to support it, to the infopop forum community – the Jan Warnquist or 3/27 test. This...