How to Clean a Ring Stain in Water Glasses

Ring stains in water glasses occur when hard water, or tea made with hard water, is left in drinking glasses.


Even a small amount left to dry out creates white rings of calcium deposit. Prevent these water rings by washing the glasses immediately after use, and dry them thoroughly with a dish towel. Scratches inside the glasses create marks that resemble water rings but cannot be removed. Mineral deposits that result in ring stains can be removed. .

Step 1

Place white vinegar in a glass, pyrex or other heat-proof, non-metal container.

Step 2

Warm the vinegar in a microwave oven or on the stovetop.

Step 3

Fill the stained drinking glasses with the warm vinegar, covering the ring stains.


Step 1

Allow the white vinegar to soak for one hour.

Step 2

Scrub away the rings, using a soft nylon or plastic scrubbing pad.

Step 3

Rinse the glasses and dry with a dishtowel.

Things You Will Need

  • White vinegar
  • Glass, pyrex or other heat-proof, non-metal container
  • Soft nylon or plastic scrubbing pad
  • Dish towel


  • Nylon netting scrubbies are safe to use when removing water rings from drinking glasses.


  • Do not use steel wool or other hard material to scrub the water marks. This will scratch the glasses.


About the Author

Karen Mihaylo has been a writer since 2009. She has been a professional dog groomer since 1982 and is certified in canine massage therapy. Mihaylo holds an associate degree in human services from Delaware Technical and Community College.