Vaporizer (cannabis) - Vapor Quality

Vapor Quality

Few vaporizer studies or reviews have really addressed the quality of the vapor extracted and delivered; instead, focus has generally been on the mode of usage of the vaporizer. There are at least 60 pharmacologically-active compounds in cannabis. The aromatic terpenoids begin to vaporize at 126.0 °C (258.8 °F), but the more bio-active cannabidiol (CBD), cannabinol (CBN), and delta-9-tetrahydrocannabinol (THC) do not vaporize until near their respective flash points: CBD 206.3 °C (403.3 °F), CBN 212.7 °C (414.9 °F), and THC 149.3 °C (300.7 °F). Because most commercial vaporizers are slow in extraction and delivery, the vapor inhaled is first aromatic, but only minimally active; as the plant material temperature rises, the vapor becomes increasingly bio-active, but minimally aromatic, because most of the aromatics have already been released. This problem is addressed in the modular vaporization tool-based systems by use of a sequential Venturi effect for more rapid extractions via a vaporization chamber bowl and vaporization heat wand or heat gun and is addressed in some box vaporizers by way of a Venturi-inducing extraction intake prior to the hose. With the vaporization chamber bowl approach, many common pipes can be modified, enabling the delivery of broader-spectrum vapor preferred by many users and higher in concentration, consistency, and aromatic density due to the increased rate of extraction and smaller sample size. Bag capture vaporizers tend to be slower in extraction rate, which prevents the attainment of fuller spectrum vapor, but are less convenient to use.