How can you tell if an e-liquid is good?
A good liquid shouldn’t taste like dish soap or your grandmother’s perfume. Trust your taste buds, but look at the label too. If the ingredient list is longer than your last will and testament and contains weird names, be wary. A good juice is a balance between flavor, vapor, and lung-respect.
Technically, check for the AFNOR standard or the absence of controversial substances like diacetyl or parabens. Serious manufacturers publish their Safety Data Sheets (SDS). Liquid clarity and lab reputation are far more reliable indicators than a flashy label color.