Definition - What does Dewaxing mean?
Dewaxing is a process used to removed plant waxes and lipids from cannabis concentrate, thus creating a purer, cleaner and more stable product. Lipids and waxes can affect the smoothness and flavor of a concentrate. Dewaxing tends to impact the final yield more than its alternative, winterization, but it is becoming a more popular option in refined commercial extraction operations because it requires fewer steps than winterization and can be completed in a closed-loop system. Dewaxing uses butane as a solvent to clean the concentrates.
MaximumYield explains Dewaxing
During the butane extraction process, after the butane is run through the product, the remaining oil is then brought down to a sub zero temperature to separate out the fats and lipids. The cold makes the waxes and lipids insoluble in the butane solution. Dry ice is often used but it can be unpredictable, which can affect levels of THC and other cannabinoids in the final product; chillers can maximize the efficiency of this process. The material is then run through a Buchner funnel that is attached to a passive vacuum, thus filtering out waxes and lips and producing a pure final product. This passes into a heated collection chamber where most of the butane is easily boiled off. The extraction can be further purified through degasification.