Hi all!
You should avoid any mixing strategy which dissolves oxygen.
Yeah, I'm from that think-tank. I'm also a professional chemist, and not in the sense of 'professional vaper'..
Anyway, the crucial part is why. Flavours are concentrated
colloids in PG (false dissolutions of both hydrophobic and hydrophyllic substances) and the maturing process (steeping up, I did not see that phrasal coming, English is not my mother's language) ought to rearrange the micelar part in new stable aggregations, a whole new colloid.
And that, in organic matrixes (I.e. , the solvent is mostly derived from hydrocarbon chains) really is a slow process.
Mechanical stirring just homogenise that matrix, but it does not fully rearrange its components. Time does, quicker in hot, but hot also poses a serious risk of other unwanted and discontrolled reactions... So...
Let it gently mature in cold (not refrigerated), dark places and be patient. The waiting should be worthwhile..
Tapatalking..Mind those lampposts!
P.D.: I forgot to tell you about the oxygen thing, but it might be pretty clear. Not only the oxidization of some components could ruin your long-waited flavour, it could interfiere with the rearrangment of all micelles...
Any micelle, i.e., aggregation of flavout molecules in their original PG matrix, to be rearranged to another new micelles in the final e-liquid, if partially oxidized should show different properties about flavouring, and what is worse, could be dramatically changed in the functional groups, those which work in team to render the sought flavour and make possible new bondings to rearrange the micelles. Something that, unless stated by the manufacturer, we should avoid. Do not mix with aeration!
As a matter of fact, I cannot recall of any flavour in which the manufacturer advises to get a good aeration to oxidize anything! Maybe they exist, but....