Distinguish the symptoms
Mineral film, detergent residue and etched glass are not the same. Note whether the cloudiness affects new glassware, appears as droplets or covers the surface evenly. Consult the glass maker’s care instructions before attempting a spot treatment.
A compatible deposit-removal method may help removable film, but etching cannot be washed away. Repeating increasingly harsh treatments can waste money and damage other items without improving the glass.
Review water and dosing
Obtain the hardness of the water entering the dishwasher and compare it with the manual’s dose and softener settings. A household softener can change the answer. Use the specified detergent quantity rather than assuming more must clean better.
Rinse aid helps water leave surfaces and may reduce spotting. Adjust it through the appliance instructions instead of filling the dispenser with a household substitute. Change one factor at a time so you can tell what helped.
Protect future loads
Check that glassware is dishwasher-compatible and use its recommended program. Keep pieces apart so they cannot strike one another. Avoid tightly packing stemware or mixing unknown decorative pieces into an aggressive cookware cycle.
If a new detergent coincides with cloudiness, test a small change under otherwise consistent conditions. Record the result on one representative glass. Your goal is a repeatable routine for your water and items, not a stronger product every time a mark appears.