How to clean discolored grout

Written by melissa rae Google
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How to clean discolored grout
Whiten dirty grout with oxygen bleach and water. (Boden image by Milosz Bartoszczuk from Fotolia.com)

Grout seals the space between tiles, but the cement or epoxy tends to darken with everyday use. Soap and hard water in a shower aid the growth of mould and mildew, causing discolouration. Heavy traffic on floors leads to dirt and build-up between tiles. Clean discoloured grout with a solution of oxygen bleach and water. The oxygen bubbles penetrate the porous or sealed grout to clean, disinfect and brighten. Use oxygen bleach in place of chlorine bleach for a fume-free substitute.

Skill level:
Easy

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Things you need

  • Powdered oxygen bleach
  • Spray bottle
  • Nylon brush or grout brush
  • Gloves
  • Cloths
  • Towel

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Instructions

  1. 1

    Fill a spray bottle with 2 to 4 tsp of oxygen bleach. Allow the mixture to stand for five minutes. Replace the lid, and shake it up until the powder fully dissolves.

  2. 2

    Spray the grout and tile with the oxygen bleach. Completely soak the grout with the solution, and allow it to sit for 30 minutes.

  3. 3

    Put on the gloves, and scrub the grout with a brush. Use more cleaning solution if necessary.

  4. 4

    Empty the spray bottle, and rinse it well with warm water. Refill it with clean water, and spray the tiles and grout to rinse away the cleaner. Spray and wipe with a cloth until all of the residue is gone.

  5. 5

    Dry the tiles and grout with a soft cloth or towel. White grout won't appear bright white until it's fully dry.

Tips and warnings

  • Sealing grout makes it easier to clean.

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