How is biodiesel made?

How is biodiesel made?

Dan Sharp (Green Family Expert) gives expert video advice on: How does the use of biodiesel help to reduce greenhouse gas emissions?; What are some of the benefits of using biodiesel? and more...

Biodiesel can be made from a number of sources. It's mainly made from vegetable oil, whether that's virgin vegetable oil or from used cooking oils. It can also be made from animal fats. For the purposes of this discussion, most people make it from used cooking oil, on the home-brew scale, or from virgin vegetable oil of some kind, on the industrial scale.