Reefer MEDness

Trevor Shewfelt and Kirk Nyquist

As a nurse and pharmacist we focus our stories on people’s use and perception of cannabis as Reefer Madness, Reefer Medicine, Reefer Mellow. We are exploring how society is changing its understanding of cannabis.

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Reefer MEDness

Episodes (233)

Feb 24th E167-1 Is Irradiated Cannabis Safe? New Research Reveals the Truth with Saji George & Mamta Rani Part 1
Feb 18th E166-3 – Why Moroccan Hash Struggles in Europe’s Pharmaceutical Cannabis Market with Mr. Anonymous - Part 3
Feb 10th E166-2 – Why Moroccan Hash Struggles in Europe’s Pharmaceutical Cannabis Market with Jan van Weenen - Part 2

Reefer MEDness

Feb 24, 2026
31 minutes
45 MB

Does irradiated cannabis still contain mold spores? In this deep-dive episode, Trevor and Kirk explore the science behind cannabis irradiation, fungal contamination, and the hidden risks of mycotoxins. Dr. Saji George and Mamta Rani from McGill University break down how gamma irradiation is used to sterilize cannabis—and why even this industry-standard sterilization may not eliminate all harmful fungal spores or toxins. They reveal that while irradiation significantly reduces fungal contamination, advanced testing still detected viable spores and residual mycotoxins in some cannabis legal products. For immunocompromised patients, even mi...

Reefer MEDness

E167-1 Is Irradiated Cannabis Safe? New Research Reveals the Truth with Saji George & Mamta Rani Part 1

Trevor Shewfelt and Kirk Nyquist

00:00 -31:02