Learn to Make Your Own Biodiesel - Part 1

At this point, we generally like to add half of the sodium methoxide to the oil in the mixing bucket and then give the remaining sodium methoxide another one or two minutes of mixing. This extra mixing will fully dissolve any remaining lye crystals. Note: Any undissolved lye crystals can upset the reaction. Add the last remaining bit to the oil in the mixing bucket. At this point, you'll begin to see a very small reaction as the sodium methoxide makes contact with the oil. It bubbles and swirls!