I mixed my first DIY 2 weeks ago and by now the flavor mixed quite nicely, using 4 creams (Bavarian, sweet, custard) and one Ripe Strawberry, all TPA/TFA.
I noticed that while the creams and strawberry were there, there is a note that doesn't belong. So I vape my PG and it tastes a bit bitter (like adding a glass of water to a can of tonic water), and later my tongue is a bit oily. Next thing I do is order another PG from a different vendor (99.7% pure, make my vape UK) and the bitterness is less pronounced but still oily (just a bit).
I read that PG supposed to have no taste, so does this mean my PG is spoiled? It has bitterness and somewhat very weak taste (Creamy tonic water??), not 100% tasteless like air.