Making Biodiesel can be a low impact activity - almost everything can be recycled. Plastic containers are washed and put in the plastic recycling. Metal containers are crushed and sold for scrap. Often, containers are re-used to collect and store oil. Cardboard outer packaging is collected by the kerbside recycling.
Excess methanol can be reclaimed via a condenser and re-used. As for the oil, any dregs are used to start my wood burner.
Excess methanol can be reclaimed via a condenser and re-used. As for the oil, any dregs are used to start my wood burner.