Quick answerOn many acid-safe glass, chrome and ceramic surfaces, diluted white vinegar can help soften mineral deposits. Let it dwell, wipe gently, rinse and dry. Do not use vinegar on marble, limestone, travertine or other acid-sensitive stone.
First make sure it is actually hard-water buildup
Mineral deposits often appear as a chalky white or gray haze around faucets, shower glass, sink edges and areas where water repeatedly dries. Soap residue can sit on top of it, so a basic wash with soap and water may be a useful first step.
A gentle method for acid-safe surfaces
- Wash away ordinary dirt and soap residue.
- Test a small hidden area.
- Apply diluted white vinegar to a cloth or paper towel rather than flooding seams and fixtures.
- Allow several minutes of contact so the acid can work on the mineral scale.
- Wipe with a soft cloth or non-scratch pad.
- Rinse thoroughly with clean water.
- Dry the surface to reduce new spotting.
Why dwell time matters
Hard mineral scale forms gradually. Giving a mild acid time to contact the deposit can be more effective than immediately scrubbing harder. Repeat the mild process before escalating to an abrasive tool.
Natural stone warning: The Natural Stone Institute advises that vinegar and other acids may dull or etch calcareous stones such as marble, limestone and travertine. Some granite minerals, sealers and treatments can also be affected. When in doubt, use the stone supplier’s recommended cleaner.
What about shower glass?
Vinegar can be useful on ordinary glass, but shower doors may have factory-applied protective coatings. Check the manufacturer’s care instructions before using acidic products or abrasive pads.
Preventing the buildup from returning
- Dry fixtures and shower glass after heavy use.
- Use a squeegee in showers.
- Address dripping faucets.
- Clean light scale before it becomes a thick crust.
- If hard water is severe throughout the home, consider whether water treatment makes sense.
Related resources
Surface-care reference: Natural Stone Institute cleaning and care guidance.