Extraction Method & Equipment
The Pacific Gas Company has surprised cannabis users with their brand-new products known as propane hash oil – PHO. It is similar to BHO but is extracted at much lower temperatures, is cleaner and retains more of its terpenes and natural oils.
Concentrate derived from a propane-based extraction is referred to as Propane Hash Oil, or PHO for short. Although others are possible, the consistency of PHO is typically budder. The process of propane extraction is very similar to butane extraction, the primary difference is simply swapping butane for propane.
Propane extractions run at higher pressures, stripping different ratios of plant waxes and oils than butane which, depending on the strain, can deliver less residuals and higher levels of terpene preservation. Propane has a lower boiling point than butane, which allows for a lower purging temperature for PHO and results in the buddery consistency as opposed to shatter. We note that some extraction companies utilize a blend of propane and butane.