My guess is they refer to thick vapor, in contrast to wispy vapor. The kind of vapor that whitewalls waterpipes. Wispier vapor only means the extraction is slower, not weaker imho. Broken or sub-par vaporizers can also be producing wispy vapor and also not be capable of extracting all the goods, but this doesn’t mean that only vapor from fog machines of vaporizers is “potent”. It is actually just more wasteful because exhaled vapor is not absorbed while wispier/tinier hits would be ingested and absorbed, just without clouds on exhale.
I remember when Vapexhale Evo and MiniVAP came out. The first was a fog machine, while the second wasn’t, especially at first when glass core wasn’t available. It seemed like MV was inferior but it wasn’t. It was just another style, a sipper instead of a one hitter. You could actually get more medicated from the same amount of weed with the MV without realizing, since it was so low key in terms of exhaled vapor, especially with the first Teflon core available.
