Hash Oil
Allowing the ethanol in a tincture to evaporate makes hash oil. However, ethanol, should never be evaporated with direct heat or near an open flame. The resultant hash oil is often very strong in terms of THC content (depending on parent material), and can be then smoked or used in various different cannabis-based products. Delta 9 THC is most strongly soluble in petroleum ether and less so in ethanol. Adding petroleum ether to tincture extracts D9 THC, and leaves water soluble chemicals in the ethanol (certain cannabinoids, proteins, chlorophyll, etc.)
Read more about this topic: Cannabis Cultivation, Harvesting, Drying and Curing, Hash
Famous quotes containing the word oil:
“I bade, because the wick and oil are spent
And frozen are the channels of the blood....”
—William Butler Yeats (1865–1939)