Why does my DIY project make my throat feel scratchy?
A DIY that stings the throat is often a sign of a nicotine level that is too high or a liquid too rich in Propylene Glycol (PG). It can also come from a lack of maturation, especially for complex Classics that need time to mellow out. If you feel like you are vaping sandpaper, your mixture is unbalanced. A small adjustment to your recipe is usually enough to find a smooth vape again without ending up with an old rocker's voice.
If you have sensitive airways or if you are asthmatic, prioritize bases with more Vegetable Glycerin (VG) to soften the vapor, following medical advice. It is important that vaping remains a pleasure so you don't feel like smoking again. In case of a persistent cough or abnormal pain, stop use and ask a doctor's advice to check your tolerance to the liquid components or to nicotine.