Get Rid Of Grout Mold!


Mold on tile grout is unsightly, to say the least.

It is typically caused by bacteria (that we all have growing in our bathrooms) combined with the hot, humid environment that our bathrooms provide, especially post-shower or bath.

Got Mold? Don’t worry, we can help.

We have a few quick, cheap and effective tips you can use to help get rid of mold in your bathroom.

What You Need

To properly care for your bathroom and remove the mold from tile grout, you will need:

  • A Good Scrub Brush

  • Baking Soda

What You Do

SCRUB the mold away, treat the grout between tiles with a paste made of water and baking soda.

That’s right – the most effective mold removal  tool we have is elbow grease. Apply the paste, wait a bit, and scrub the mold away!

Mold Scrubbing Tips

  • Leave on for as long as you need to—for example, very dirty grout can use an hour or two.
  • Spray the tiles with water and use a scrub brush to clean the grout with a brisk back and forth motion.
  • Rinse well and buff dry.

    Once it’s gone, keep it gone.

    Once you have scrubbed the grout, you can prolong your mold-removing efforts so that you do not have to use as much elbow grease next time!

    If your bathroom is not properly maintained between cleanings, it does not take long for mold to come back. In fact, think of mold prevention like oral care—we have to maintain our teeth to keep plaque away.

    Like a dentist, I am going to suggest some preventative maintenance for you to keep mold out of your bathroom.  It only takes seconds to do and is much easier than what the dentist tells you!

    Turn the fan on & open a window

    When you have finished showering, turn on a fan or open a window until the humidity from your shower has dissipated.

    You need to have top-notch ventilation to remove the humidity and moisture from the air.  The lack of humidity creates a poor breeding ground for bacteria and is the easiest way to maintain your mold-free space.

    Mix Up Mold-Prohibiting Spray

    To doubly protect your bathroom, keep a spray bottle nearby and quickly mist the tiles and caulking after your shower with this natural anti-mold solution that takes no effort to make.

    The solution contains mold-prohibiting ingredients that when sprayed, protect your bathroom from becoming a breeding ground.

    You need white vinegar or tea tree oil, water and a spray bottle.

    Vinegar solution

    Mix equal parts of vinegar and water in a clean spray bottle.

    Tea tree oil solution

    Mix 10 drops of tea tree oil into a clean spray bottle filled with water

    • Place the spray bottle on the ‘mist’ setting.
    • It takes about four seconds to spray the tiles and then you walk away. 

    Now you are protected from mold

    These ingredients are cheap, easy to find and are highly effective. 

    I particularly love the tea tree oil solution, as I find the scent soothing and spa-like!

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Melissa Maker is the host of the Clean My Space channel on YouTube, editor-at-large of, and founder of Clean My Space (a well-known Toronto-based cleaning service). She's been knee-deep in the cleaning game since 2006. Follow Melissa: @MelissaMaker on Instagram, SnapChat & Twitter!


  1. I was busy looking at her breasts throughout the entire video. Melissa is so cute! The video is very good and informative.

  2. I’ve always wanted to say thanks to internet and many thanks to all those who for heartful reasons take their time and share their knowledge to help others with everyday complications – Mellisa, you’re one of those who would save the dayCn

  3. Melissa,
    The post is great. However, in order to make your guides more credible, you may wish to doa bit of homework beforehand. Mould is not caused by bacteria; it is fungi (same as mushrooms) and it is a growing organism.
    Other than that, the post is great.

  4. I too have the same issue. What can I (we) do to clean severe cases? Also, as another PP asked, how do you do this for tiled walls, if the paste won’t stay in place?

    • All u need is bleach i prefer scented and a long cotton ball strip the kind u get from a salon store like sallys soak your cotton strip place all the way around tub grout or calking leave for half come back remove throw away no scrubbing involved u will be amazed white vinigar works great for ceiling and toilet mold. Happy cleaning.

  5. This is helpful, by learning how to get rid of black mold safely and effectively, you can protect the health of your family and the value of your home, without breaking the bank.

  6. Hi – we recently (in the past six months) removed/replaced the silicone coating along the grout line where the tub meets the tile wall, and now I think mould is behind the silicone….I think I know the answer here, but do you think we should remove the silicone, deal with the mould and re-seal, or forget about silicone sealant altogether and just keep the grout accessible to cleaning?

  7. This was exactly what I needed! Thank you! Unfortunately 80% of my house is tiled so I’ve got a lot of work ahead of me 🙁 hopefully this will make my job go a lot quicker.


    Tea tree oil solution

    Mix 10 drops of tea tree oil into a clean spray bottle filled with water

    Place the spray bottle on the ‘mist’ setting.
    It takes about four seconds to spray the tiles and then you walk away.

  9. Hi there, I need help! I have tried lemon juice and baking soda… white vinegar… and it is not removing the mold in my bathtub at all (or maybe it is and just the stain is left?). I left on the paste for 8 hours today and it didn’t lighten the dark spots. Is is possible it got so bad that the grout will need to be removed and then replaced with new grout? Thank you so much for your help!!

  10. Really cool. I’m definitely going to try it. I’ve tried bleach for years and I think the only thing it’s actually done is shorten my life span. Thanks Melissa.

  11. Very nice post, impressive. its quite different from other posts. Thanks Melissa for sharing . You’ve taught me a lot with your guide. I will share this to my friend

  12. The grout cleaning was fantastic. I have spend a lot of money and tried different methods to clean the grout in my kitchen and nothing worked After using this method my floor looks like the day we installed it.
    Thanks for the great tip!

  13. yes good job
    the all mighty lemon to disenfect and extra all mighty baking soda cleans everything in a healthy excellent fashion thanks Ruth

  14. I noticed the grout molding after I cleaned the shower with tilex. Could that have stripped the sealer that was applied. Also after I get it clean should I let it dry and then reseal the tile and grout.

  15. Does baking soda react to anything else, such as bleach? Specifically, is it OK to clean the grout with baking soda, wipe it down, and then mop the floor with bleach water? Or do you need to rinse off all the baking soda very carefully first?

  16. I actually haven’t used baking soda on grout. I’m trying that out. I like the advice on prevention too. I know of 4 factors in mold prevention for your readers:

    1. Moisture
    2. Humidity
    3. Cleanliness
    4. Temperature


    I think you tackled at least 3 of the 4 factors in your post. Awesome!

  17. Hello,

    I visited your site and noticed you provide a lot of good tips for cleaning the bathroom, toilet, etc. HOwever, I stumbled upon a toilet bowl cleaner called NEVERSCRUB and thought it would be great for you to share with your readers! It removed all my hardwater and grime stains. I dont work for the company,. I am a housewife that swears by this product and figured you should share this too. I love your blogs!

Tell us what YOU think!!