When i first started using them, there was no doubt it did also preserve the de-carbed thc......... after full convertion from THCv to THC (Cure)...........
I had a 250ml jar = (Screw Top Mini "Kilner" jar), with "Think Different" fem in, it was in my fishing kit, somewhere around two year later, that was summer 2017, went fishing again!
it had one 62%RH Bovi pack in with 3rds of jar full........... when i opened it, i hadent smelt the think different for 2yr !!........... it was all there, as you say, fresh as the day it was locked down !!......... vape it, was smooth smoke as the RH was still correct.............. use em ever since, as if i overdry a harvest, the bovi pack re-hydrate the bud to correct humidity, so still come out a smooth smoke, even after an idiot over dry it, baked it crisp and harsh !! ALR
Thanks for the kind words 
