CloudinessFixNote
Mineral film (limescale)Warm white-vinegar soak, rub, rinseReversible; lemon/citric acid too
Dishwasher etchingNothing — it's permanentPrevent, don't try to remove
PreventLess detergent, rinse aid, hand-wash thin glassEtching comes from soft water + heat
NeverAbrasive padsThey scratch glass cloudy