Thanks Anna, for sharing your impressions (and you to
@Letitia; sorry that I forgot you were another DIYer with personal experience)

.
I understand PEG400 is most commonly used as a substitute for PG. However, in this instance (Fran's trying to "de-sweeten" some of her mixes/concentrates), if the PEG400 might be used in place of the
VG. Maybe even as the sole carrier (just flavor, Nic, and PEG400).
Is the PEG400 thick enough to prevent catastrophic flooding? And, is there any (too much) harshness to it, to prevent solo use?
That's why I was asking. If you were able to minimize/eliminate any inherent sweetness that might be coming from your base, maybe some of your "too sweet" recipes/concentrates might become acceptable.
But, instead of using it as a sub for PG (which I get no impression you have any problems with), I was thinking as a VG substitution. The NR description says:
"Polyethylene Glycol 400, USP is a clear, colorless, viscous liquid, the USP grade,..."
That made me think maybe a PG/PEG400 blend, or all PEG400 base, could take the place of your current PG/VG base.
Just thinkin' out loud... feel free to ignore me.




Here's PJ's grapefruit post:
Random DIY mixing and More
I have always perceived a sweetness from the INW Strawberry Shisha. I once tried
@AndriaD's strawberries & cream recipe that called for SS to be used at a whopping 18%. At that extreme, the shisha notes (predominantly honey, and a bit of incense(y)
tobacco) really came out. But even at much lower (1-3%) percentages, I have found it to be a sweeter, more candy-like, strawberry.
As for the lemon note; I feel about lemon concentrates, the way you feel about lime concentrates... they all have some (some more; some less) semblance of "sweet" to them (including FA Lemon Sicily). It very well could all just be in my head; in the absence of any real "sour" note, my twisted brain tells me they must therefore be sweet.


But, right or wrong, that is my perception.
I don't know if you ever use any other supplier besides BCF; but I found it still in stock at
Nicotine River (and bought some

) this holiday. The price was the same.