Mr Numpty
Veteran
- Joined
- Jun 9, 2015
- Messages
- 6,369
its because nicotine reacts with the flavours .. we make shortfills that never change colour ..
but the Nic'd up stuff we make does ... more importantly the higher the nicotine strength the quicker and darker it goes ..
that to me says its the reaction with the nicotine.
hence using no PG/or VG and letting it sit for a day or 3 can really speed up the final destination process .. very useful when developing new flavours for us.
I view most speed steeping techniques such as frothing as pure bro science drivel - and leaving the top off I find ridiculous (especially with all the cries for cleanrooms) - but there is from our experience some merit in applying gentle heat and using the above technique.
It all makes sense. I'm guessing the molecules of the flavours having much closer proximity to each other than they would in a full mix, helps them react with each other more quickly also.