Hello Tilly, my name is Chris Harris and I'm afraid I do not know much about posting questions on forums and whatnot so please excuse me if I'm being annoying.

I have taken up the business of making biodiesel but I'm having a few problems.

I have only got one batch to come out right.

My problem is this: I made a second batch of 200 ltrs but the Warnqvist test shows that there is something amis. There is "something" settling out in the bottom of the sample and I do not know what it is. When I performed another titration (using isopropanol 27ml, 2 drops of phenol red and 3ml of the processed oil, it turned pink immediately so to me, that indicates that there are no triglycerides in the batch. Could be wrong and probably am. What do you think I should try next?

Hope you may be able to help as I would hate to chuck it all out.

Regards Charris