Unfortunately starting with clean VO does not make clean FAME. It is simply not possible to make clean bio-diesel without performing some type of wash after the reaction. There are many options including mist, bubble, heating, settling.... or some combination of these. It is critical that the...
Welcome to the wonderful world of home brew fatty acid methyl esters (FAME, commonly called bio-diesel). Please consider a few words from someone who has been making it for quite some time - many, many batches. It sounds like you have a good start - but I hope you will consider adding some...