How do I remove hard water stains from inside an old milk bottle?

Answer 1

White vinegar has been proven to work to remove hard water stains from glass bottles. See the step by step method below...

Natural Formula to Use:
½ liter white vinegar and ¼ liter of water

Method to Use:
1.Fill a clean spray bottle with pure vinegar

2.Spray the vinegar/water solution over the glass bottle and wait for a few minutes

3.If stains are stubborn spray more solution and wait a while longer

4.Scrub lightly with a soft sponge or cloth and rinse


Tip:
Try to deal with the water spots straight away as the solution works best with newly formed or mild hard water spots.

Answer 2

Fill the bottle 1/3 with crushed ice or ice cubes, add about 1/4 cup sugar and shake the bottle while turning.