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Cloudy Glasses and White Film in the Dishwasher: The Hard-Water Fix

Updated

Short answer

White, milky film on glasses and inside the tub is most often a hard-water effect, made worse by phosphate-free detergents, according to GE. GE's fixes: a citric acid cycle or a dishwasher cleaner, rinse aid, and a water softener. Water in this area tests very hard, so film is common.

Film or etching?

GE distinguishes film, a mineral build-up that can be removed, from etching caused by too much detergent, which cannot (GE). Try the citric acid cycle first: if the cloudiness comes off, it was film.

GE's citric acid method

  1. Pour citric acid into the detergent cup and close the cover.
  2. Load the filmed, but otherwise clean, glassware and dishware. Leave silverware and other metal items out.
  3. Run a complete cycle without detergent.

Source: GE Appliances. GE also lists a dishwasher cleaner as an alternative.

Prevent it

  • Keep the rinse aid dispenser full; GE says rinse aid makes water sheet off dishes and prevents spots (GE).
  • Set the dishwasher's water hardness if it has the option; GE's SmartDispense models take it from a test strip (GE).
  • Consider a water softener; GE recommends one for extremely hard water and says build-up can damage components over time (GE).

Your town's hardness is in the hardness table.

Quick answers

Why are my glasses cloudy from the dishwasher?

In hard-water areas, usually mineral film. GE says phosphate-free detergents make it more common, and a citric acid cycle removes it.

How do I remove dishwasher film?

GE: citric acid in the detergent cup, filmed glassware loaded, metal items out, a full cycle with no detergent. A dishwasher cleaner also works.

Rather have someone fix it?

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