Seeing cloudy glasses or white marks after a dishwasher cycle can be frustrating. It’s easy to think your detergent isn’t working or that your dishwasher is wearing out, but that’s not always the case. In many homes, the real culprit is hard water and the limescale it leaves behind over time.
The good news is that fixing the problem is often much easier than you’d expect. A few simple maintenance habits can also help keep your dishwasher running well and your dishes looking their best.
Those White Marks Might Not Mean Your Dishwasher Is Broken
If your glasses come out looking cloudy or covered in a white film, there are a few possible reasons. Most of the time, it’s limescale caused by hard water. But low dishwasher salt, not enough rinse aid, or even glass etching can lead to similar-looking marks.
A quick test can help you figure out what’s going on. Rub one of the spots with a cloth dipped in white vinegar. If the mark disappears, it’s limescale. If it stays, the glass may have been permanently etched after repeated washes, especially at high temperatures. In that case, no cleaning product will bring back its original shine. Finding the real cause first can save you time and stop you from using products that won’t solve the problem.
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White Vinegar Can Help, Just Don’t Make This Common Mistake
White vinegar is a simple and inexpensive way to remove limescale from your dishwasher. Running an empty hot cycle with vinegar every once in a while can help clean the inside of the machine and improve its performance. One thing you shouldn’t do, though, is mix vinegar with baking soda.
Even if the bubbling looks satisfying, the two products react together and reduce each other’s cleaning power. If you plan to use vinegar regularly, it’s also a good idea to check your dishwasher manual first, since some manufacturers recommend against frequent use to protect seals and metal parts.
To keep white marks from coming back, make sure your dishwasher salt is topped up, use rinse aid if needed, and clean the filter and spray arms from time to time. These small maintenance steps can make a big difference and help keep both your dishwasher and your dishes looking their best.
