Q: Why do my glasses look cloudy right out of the dishwasher?
—Rachel Clarke, Hopewell, N.J.
A: A common reason for cloudy glass is hard water, but there may be another culprit: minuscule, irreversible scratches, which can result from a reaction between glass composition, water, and detergent, says Beth Robinson, brand experience manager at KitchenAid. If the film remains after you rub the glass with distilled white vinegar, which removes hard water’s calcium and magnesium buildup, it’s likely due to this fine etching. If not, you likely have hard water; add a rinse aid (such as Finish) to the dishwasher’s dispenser.