How to Remove Hard Water Spots from a Glass Shower Door

Hard water spots on a glass shower door are a common frustration. They form when mineral-rich water dries on the glass, leaving behind calcium and magnesium deposits. Over time, these spots can build up into a cloudy, crusty film that makes your shower look dull. The good news: you can remove them safely with common household items like white vinegar and baking soda. Here's how to do it without damaging the glass.

Why Hard Water Spots Form

Hard water contains dissolved minerals, mainly calcium and magnesium. When water droplets evaporate on a glass surface, these minerals are left behind. If you don't wipe the glass regularly, the minerals accumulate and bond to the surface. The result is those stubborn white or cloudy spots that resist plain water.

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Fresh spots are easier to remove because they haven't had time to set. Dried or set-in spots may require more effort and a longer soaking time. The method below works for both, but you'll need to adjust your approach based on how long the spots have been there.

What You'll Need

• White vinegar (distilled white vinegar works best)
• Baking soda
• Spray bottle
• Soft cloth or sponge (non-abrasive)
• Plastic scraper or credit card (optional, for stubborn spots)
• Water