Massachusetts Lab Investigates How To Dose Yourself When Vaporizing Cannabis

Vinman said:

Here's the study I would like to see done, to firmly answer the question of whether holding vaporizer hits longer does any good or not:

The 2006 study titled "Evaluation of a vaporizing device (Volcano) for the pulmonary administration of tetrahydrocannabinol" found that "on average 35% of inhaled THC was directly exhaled again". Conduct a similar-type study but measure the full range of active cannabinoids, and have the breath held in increasing increments of 10 seconds, to establish what breath holding time is most effective.

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Would be a most interesting finding for sure! BUT ...it would be near impossible to establish any meaningful consistency among inhalation study participants with regards to lung capacity, internal lung structure as relates to withheld cannabis agent (e.g., absorption/retention), blood transport & titration, etc... unless the study utilized only one participant and metered precise inhalation dosages and monitored the output ...yet the results could only be generalized into the homogenous population as an averaged result. Still, not a bad start for general guideline purposes.

Hi I'm a licenced ma mmj user and will volunteer if needed.I don't have an herbalizer but I do have a underdog,pax, and mflb.I also suffer from back problems if you'd like to extend it to pain management study too.

What I find extremely interesting about this study is what's left in the ABV after those 30 draws (I clipped Figure 2 from the white paper below). While obviously a lot of the THC has been extracted, THC is still the primary active component in the ABV - much more so than CBD.



Also, roughly 1/3 of the THC left in the ABV is THCa. A common perception is that when cooking with ABV you dont need to decarb because vaporizing does it all for you. This appears only partially true...ABV chefs could conceivably increase potency by 30% if they decarbed their ABV first.

In Figure 1 I notice THC concentrations are shown as a % of the max concentration. It doesnt say "70% of the THC has been extracted after 30 draws". Is it possible to recut the data in Figure 2 to show absolute rather than relative concentrations so we can draw a conclusion around how much THC remains relative to what you started with?

First time Ive seen this type of data before. Great job!

super interesting info -- thx 4 the share !!!!!!!!

@mcrlabs

Are you planning on doing other similar testing in the future?

What I was thinking is that us MA card holders could save our ABV from each vape we own separately. After I've saved up a bit in each jar I could drop them off to be tested (and maybe finally check out your lab )

It would be the start of some interesting conclusions. For example maybe that near black ABV from the pax is really only as "finished" as the brown ABV from a convection vape like my cloud or firefly.

I've recently hypothesized that perhaps convection vapor will always look "less done" than conduction, even if it is the same strain and both depleted of the same amount of actives.

Any updates?