Does Bathroom & Shower Cleaner kill mould or bacteria?Updated 7 hours ago
TL;DR: Bathroom & Shower Cleaner is formulated to remove soap scum, body oils, and bathroom grime. It helps lift surface mildew from hard, non-porous surfaces when you scrub and rinse. It is not tested or registered as a disinfectant, anti-microbial, or anti-mould product, and we don't make those claims. Regular cleaning physically removes microbes to healthy levels, and good ventilation plus drying after use keeps mould from returning.
Last reviewed: April 2026
Does Bathroom & Shower Cleaner kill mould or bacteria?
No. Bathroom & Shower Cleaner is a cleaner, not a disinfectant or registered anti-mould product. It breaks down and lifts away soap scum, body oils, bathroom grime, and surface mildew, but it isn't tested against the antimicrobial or sporicidal standards that would support a "kills mould" or "kills bacteria" claim. The good news: regular cleaning physically removes microbes from hard surfaces, and that's what most household bathrooms actually need.
✓ What it does
Breaks down soap scum, body oils, and bathroom grime. Lifts light surface mildew from hard, non-porous surfaces when you scrub and rinse. Rinses clean with water.
⚠ What it doesn't do
Not a disinfectant. No antimicrobial or anti-mould claim. Stubborn mould rooted in grout or silicone may need re-grouting or re-siliconing rather than cleaning.
How do I clean visible mould safely?
For light surface mildew on tiles, glass, or enamel, ventilate the room, wear gloves (and a mask if you're sensitive to spores), spray Bathroom & Shower Cleaner and let the foam sit for 1 to 2 minutes, then scrub with a soft brush or cloth and rinse thoroughly. Dry the surface afterwards. For embedded mould in grout or silicone, physical removal (re-grouting or re-siliconing) is usually the right answer.
✓ Surface mildew method
Ventilate and protect. Open a window or run the extractor fan. Wear gloves. Mask if you're sensitive to spores.
Spray and wait. Foam the affected area (tiles, glass, enamel). Let it sit for 1 to 2 minutes to soften the mildew.
Scrub. Soft brush or cloth. Mildew lifts with mechanical action, not dwell time alone.
Rinse and dry. Thorough water rinse, then dry the surface. Moisture is what lets mould return.
How do I stop mould coming back?
Mould needs moisture. Remove the moisture, and you remove the mould's food. Squeegee glass and tiles after every shower with Bathroom Squeegee. Dry silicone seals and ledges. Run the extractor fan or open a window during showers and for 20 minutes after. Keep the shower tidy so air can flow. Wash cloths and bath mats regularly. Fix leaks and seal failures promptly. Weekly clean with Bathroom & Shower Cleaner keeps soap scum (mould's favourite food) off surfaces in the first place.
✓ Daily habits
Squeegee glass and tiles after every shower. Dry seals and ledges. Run the fan or open a window during showering and for 20 minutes after. Hang towels to dry.
✓ Fix the source
Weekly clean to prevent soap scum build-up. Wash cloths and bath mats regularly. Fix leaks and seal issues promptly. Re-grout or re-silicone where mould is embedded beyond cleaning.
More tips and step-by-step guides on the Koh blog: How to Clean
Stop mould before it starts
Bathroom Squeegee removes moisture from glass and tiles after every shower. Less moisture, less mould.
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