Even VG-only nic
juice does not freeze solid in my freezer. Becomes as thick as rubber cement though. PG gets a touch thicker, but is still quite liquid. I recently pulled a MyFreedomSmokes 100 mg VG bottle out of my freezer after 13 months. No change in color or potency at all. Fresh as the day I got it. OTOH, my Totally Wicked 36 mg PG (made in China) after the same time had "ripened", meaning any tobacco tones that were only slight initially were now quite strong, and the liquid was yellowed some. Too bad I can't vape PG, as it was actually quite a nice tobacco
juice...but definitely not unflavored anymore. The Decedent Vapor 54 mg PG was unchanged in taste and color.
So it seems that freezer is great for clean US-made nic juice, but Chinese juice might "age" some in flavor. The TW seemed still about 36 mg in strength, but that is only qualitative from
vaping it.