How to kill black mold on shower grout and silicone without scrubbing

You will learn simple household methods to kill mold on shower grout and silicone caulk without scrubbing. It suits anyone with a damp bathroom and stubborn black spots around tiles, tubs or the toilet base. You only need baking soda, hydrogen peroxide or white vinegar and a few paper towels.

Black Mold on Your Shower Grout How to Kill It in 5 Minutes (No Scrubbing), by Marlene Keeps House on YouTube. 14 min 59 s.

Video length
14 min 59 s
Time to do it
15 minutes plus soaking time
Difficulty
Easy
Steps
8

What you need

Steps

  1. Open a window or run the extractor fan before you start. Put on rubber gloves so the peroxide and vinegar do not dry out your skin.

  2. Mix baking soda with enough hydrogen peroxide to make a thick paste. Spread it along the moldy grout lines with your fingers or a cloth.

  3. Leave the paste on the grout for about 10 minutes, then wipe it away with a damp cloth. Repeat on any dark spots that remain.

  4. Soak a paper towel in white vinegar and press it onto moldy silicone caulk around the tub or toilet. Leave it for 30 minutes to an hour.

  5. For shower door tracks, fold a paper towel, soak it in hydrogen peroxide and lay it along the track. Leave it for about two hours, then remove and rinse.

  6. Pour half a cup of baking soda down the drain, then half a cup of vinegar. Let it fizz for a few minutes and flush with hot water to clear the musty smell.

  7. Fill a spray bottle with white vinegar. Spray the shower walls and grout for 30 seconds after each shower to stop mold coming back.

  8. For a moldy shower head, tie a bag of vinegar around it so the head is submerged. Leave it overnight, then remove the bag and run the water.

Tips and common mistakes

Never mix vinegar and hydrogen peroxide in the same bottle, because the mixture is less effective and can irritate your skin and eyes.

Vinegar should not go on natural stone or marble tiles, as the acid can dull and etch the surface.

If mold keeps returning, fix the damp source first, such as a leaking seal or poor ventilation, or it will grow back.

Wear gloves and keep the room ventilated, and throw away the used paper towels rather than leaving them in the bathroom.

Questions

Does vinegar really kill mold on silicone?

Vinegar can kill mold on the surface of silicone, but it will not remove deep staining. If the mold is inside the seal, the caulk usually needs replacing.

Can I use bleach instead?

Bleach can lighten surface stains, but it does not soak into grout or silicone well. Never mix bleach with vinegar or hydrogen peroxide, as the fumes are dangerous.

How do I stop mold coming back?

Dry the shower after use, run the fan during and after showers, and spray vinegar on the grout regularly. Fix any leaks around the tub or tiles.

This guide was drafted from the video's details and general task knowledge. It has not been checked against the full video. Check the video and relevant product instructions before following a procedure. Report a correction.

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