UK medical cannabis is taken through vaporisation, not smoking, to reduce...

https://www.thelondoneconomic.com/lifestyle/health/how-medical-cannabis-vaping-works-temperature-devices-and-the-economics-behind-it-409054/

UK medical cannabis is taken through vaporisation, not smoking, to reduce harmful toxins. Device types—conduction or convection—and temperature settings impact how effectively cannabinoids are absorbed