Butane hash oil (BHO) is a concentrated form of cannabis rich in solvent-extracted cannabinoids, and the final oil-based product can come in different forms like shatter, budder, wax and oil tinctures. How is BHO made safely? As countless YouTube videos will attest, making BHO without knowing how to do it safely can result in blowing up your house. For high-quality concentrates made safely, the multi-day, multi-stage process typically requires a closed-loop extraction machine like the PX1. This video details the entire BHO-making process, including the science behind many of the steps, to help would be oil barons make quality BHO without potentially losing a limb.