Kurt
We have experienced some "hot spots" but mostly in testing recently made samples. We learned from test results that VG requires some additional mixing to have accurate consistant results. So with that in mind we do periodically re-mix our nicotine batches to ensure that there is no separation. As of now I have not seen any separation since we started mixing longer.
I will remember to watch out for my significant digits. Thanks.
For a density test would you like to use specific gravity as a method to test for that? That could be done pretty easily.
Adam
Adam,
From your observations concerning hot spots with nic in 100% VG, do you feel this was from the initial mixing or separation/settling over time?
If there is a possibility of nic separation/settling in VG, could temperature could play a role? Some store their liquids in a cupboard while others use the fridge or freezer. Could this be a concern for the DIY crowd using 100mg in all VG? I have a habit of shaking anything I use but others may not.