How to Whiten Grout Lines


White grout lines can sometimes be difficult to keep clean, as the grout is absorbent and is typically inset a bit deeper than surrounding tile or stone. This allows residue and buildup to accumulate in the grout lines, leaving you with dull and discolored white grout. To restore the bright, clean appearance of the white grout, use a routine that works quickly without harming the grout or any surrounding surface.

Things You'll Need

  • Bowl
  • Spoon
  • Baking soda
  • Old toothbrush
  • Cleaning rags
  • Combine a solution of 3 parts baking soda to 1 part water in a bowl. Stir the mixture with a spoon to create a paste.

  • Dip an old toothbrush into the baking soda mixture and scrub over the white grout.

  • Continue until all residue is removed from the grout.

  • Remove leftover baking soda residue by wiping down the white grout with a wet cleaning rag. Rinse the cleaning rag as needed, and when all of the residue is removed, wring out your cleaning rag and wipe down the grout to collect any leftover standing water.

  • Let the white grout air dry, and clean with the baking soda paste as needed to keep the grout white and attractive.

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  • Photo Credit Polka Dot Images/Polka Dot/Getty Images
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