Quick answer: perhaps?
The basic security of vaping oils or “juice” is debatable. The challenge is with the thinning agents utilized to make vaping of cannabis extracts feasible. The usual strategy for making cannabis vape oils is to generate shatter extract applying CO2 or solvent extraction, then to dissolve the extract in a mixture of vegetable glycerin (VG) and propylene glycol (PG), polyethylene glycol 400 (PEG400), or medium chain triglycerides (MCTs).
These thinning agents are believed to be harmless, and in the case of MCTs even useful to your wellness when ingested at space temperature. The query is what chemical reactions take place when these compounds are heated to vaping temperatures (170-230°C)?
This study looked at the formation of two identified carcinogenic carbonyls when these thinning agents had been heated above 230°C. It identified that PG and PEG 400 produced potentially unsafe amounts of formaldehyde and acetaldehyde when heated to 230°C. Even so, VG, and MCTs did not.
So can you vape MCT oil?
Yeah, perhaps? But it is going to taste awful. Most, if not all sublingual oils like CannTrust’s 1:1 oil are created with a MCT base derived from coconut oil. This certain study does not appear at the prospective for a situation known as lipoid pneumonia – a specifically nasty variety of pneumonia triggered by fatty compounds irritating the lungs. This is a prospective danger of any oil vaporization, so moderation and caution is most likely important. CGYweed encounter shows that it is feasible, but not excellent.