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how to clean cloudy glass

How to clean cloudy glass? The answer begins with understanding that unnatural hue in the first place: Usually a scratch-causing combination of water, detergent and you.

Let's start with the water: It is usually softened to make soaps clean better. And dishwasher water is heated to 140 degrees to further increase its cleaning power.

Then there's the dishwashing detergent. It's packed with phosphates to boost cleaning power.

And then there is you and me - the user who dutifully rinses dishes before loading the dishwasher. The combination packs an almost too-powerful cleaning punch that often leaves glasses looking worse for wear.

These 3 tips can help clarify the problem and provide solutions.

  1  the dishwasher can be part of the problem

When the dishwasher runs, things get hot inside. And not in a good cleaning way. Without hard-water minerals to act on, and little food waste to occupy them, those helpful phosphates turn into troublemakers for any glassware.

At the end of the cycle - or combination of months of cycles - the glasses come out foggier than when they went in, with a coating that no amount of cleaning can coax away.

A magnifying glass, however, would reveal the truth - your glasses aren't the least bit dirty or fogged with a film. In fact, they're so clean as to be etched - as in the surface is scratched. 

To determine which you're dealing with, drop vinegar onto the cloudy surface. Rub it around with your finger.

Drain the vinegar; let dry. If the rubbed area dries clear, it's film. If there's no change, it's been irreversibly etched. 

  2  how to clean cloudy glassware caused by hard water

The most common culprit for film is hard-water drops of calcium and magnesium repeatedly drying into place and underuse of detergent. 

Remove filming by adding an acidic rinse (such as white vinegar) to your dishwasher. Be sure to check your dishwasher's instructions for the right amount to use.

The best-performing, low-phosphate detergents include Finish Powerball Tabs , Cascade Complete All-in-1 Actionpacs, and Cascade Complete All-in-1 Gel Dishwasher Detergent with Bleach Hydroclean Action.

You can also simply use less of your favorite detergent. Then give it something to act on - skip the rinsing before you pop that plate into the dishwasher.

  3 how to prevent future glassware etching

You can help prevent future etched glassware by:

  • Increasing the temperature of the water entering the dishwasher to 140 degrees F.
  • Use the no-heat, energy-saver dry cycle.
  • Adjusting the amount of dishwashing detergent you use according to the hardness of the water.
  • Let the detergent do its job unaided: Refrain from pre-rinsing dishes before putting them in the dishwasher. This not only saves water, it gives your detergent what it needs to be effective: Food to remove. Without it, the alkaline concentration of your detergent increases, which is bad news for your glasses.

› How to Clean Cloudy Glass


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