Instructions to remove hard water stains from glass

We often notice on our glass and shower doors stains produced by hard-water which look like soap scrums. Having a high concentration of dissolved minerals such as magnesium and calcium, hard-water produces stains that cannot be removed with a common scum cleaner. What you need is an acid-based product.

You can also try to use vinegar or baking soda, but it doesn`t always work. To get rid of the unaesthetic stains you can use a cook-top cleaner such as Weimans.


  • The cheapest solution is to clean hard-water stains with a mixture of baking soda and a paste of vinegar.
  • Using a hard sponge put the mixture on the stains, moving round. Let the pasta takes effect for 15 minutes.
  • Clean up the pasta with a wet towel. The surplus of water can be removed using a squeegee. Recent spots should disappear after this action. Old stains require repeating the action several times.
  • Use a hard sponge to apply a cream stove-top cleaner on the glass. Let it there for 15 minutes.
  • Using a towel, buff the dried product. The glass should be clean now. Remind to repeat the action twice a year.
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