How to Stop White Residue on Dishes From a Dishwasher | Hunker
Oct 01, 2019·Etching, however, is a permanent problem. Etching occurs when tiny bits of soap powder scratch the dishes. If you run your fingernail down a cloudy glass and feel little divots or bumps, your dishwasher has permanently scratched the dish. Switching to a liquid detergent should solve the problem, but it won't undo any damage that's already occurred.