Cleanin • 13 Jul 2025 Feature image

Ever noticed a pink substance creeping around your shower and wondered if your bathroom’s trying out a new look? Unfortunately, that rosy stain isn’t a style upgrade it’s pink mold. It thrives in damp places like bathrooms and kitchens. 

Actually, it’s a common sight in Aussie homes. While it might look harmless, it can pose health issues. Want to know how to clean pink mold properly? You’re not alone. Pink mildew removal is a common headache, especially when it keeps coming back no matter how often you scrub.  

Let’s talk about pink mold, how to get rid of it and how to prevent it.

What is pink mold?

Despite the name, pink mold isn’t really a mold it’s actually a type of bacteria called Serratia marcescens. This airborne germ thrives in warm, damp places and loves feeding on things like soap scum, shampoo residue and even toothpaste, which is why it shows up so often in bathrooms and kitchens.

Visually, pink mold appears as a slimy film that ranges in color from light pink to reddish-orange. Sometimes it even leans toward bright red. You’ll usually spot it clinging to shower tiles, bathtubs, sink drains and around toilet bowls. It can also show up in kitchens, especially around taps, drain holes and in dish racks. Laundry areas and basements aren’t off-limits either, particularly if there’s excess moisture and poor ventilation.

So, why does it keep coming back? Serratia marcescens spreads through the air and quickly settles on wet surfaces. Once it finds a moist, slightly grimy environment, it forms a biofilm a protective layer that helps it cling to surfaces and resist removal. Without regular cleaning and proper airflow, pink mold can return just days after being scrubbed away.

Is pink mold dangerous?

Pink mold isn’t a big deal for healthy people. It’s more of an annoyance than a hazard. After all, Serratia marcescens, the bacteria behind pink mold, is surprisingly common and often already present in our homes.

However, things change if the bacteria enter the eyes, lungs or open wounds. That’s when it can become a real concern. People with weakened immune systems, respiratory issues, who are young or who are recovering from an illness are most vulnerable. In these cases, there are some health risks associated with mould, such as:

  • Urinary tract infections (UTIs)
  • Respiratory infections (like pneumonia)
  • Eye infections (including conjunctivitis or tear duct infections)
  • Skin irritation or reactions in sensitive individuals

Even healthy people can experience allergy symptoms from pink mold, such as sneezing, congestion, dry or itchy skin, coughing or worsening of asthma.

So, while pink mold isn’t as dangerous as black mold, it still deserves attention. Cleaning it up quickly keeps your house hygienic and your family healthy.

Cleaning solutions to fight pink mold

Before tackling pink mould, make sure you’re geared up with the right cleaning supplies for mould. This isn’t just about making your tiles sparkle. It’s about protecting your health, too.

Necessary tools and materials

  • Microfiber towel
  • Bristle brush
  • Respirator mask
  • Rubber gloves
  • Safety glasses
  • Shower curtain liner
  • Spray bottle

Mild dish soap and water

This is a good first step for light mold growth on non-porous surfaces such as shower doors (glass or plastic), tiles and sealed countertops. It lifts and removes the initial biofilm and some bacteria or yeast colonies.

White vinegar and baking soda

White vinegar is a handy, mild disinfectant that works well against many types of bacteria and mold. It’s natural, easy to find and gentler than a lot of chemical cleaners. It’s especially good for tackling mild to moderate growth on non-porous surfaces like shower walls, taps and sinks. Thanks to its acidity, it can kill the bacteria behind that pink color. And yes if you’ve ever wondered, does vinegar kill mold? It sure does, especially pink mildew.


Caution: Avoid using vinegar on natural stone surfaces like marble or granite as its acidity can damage them.


Hydrogen peroxide

Hydrogen peroxide is another effective disinfectant and a good alternative to bleach. It produces less harsh fumes compared to bleach. Besides, it breaks down into water and oxygen.

Generally, it’s safe for non-porous surfaces like grout and plastic. It’s particularly useful for tackling more established pink growth.

Bleach (Sodium hypochlorite)

Bleach packs a punch! It’s best saved for stubborn or widespread pink mold. It works great on non-porous surfaces like glazed tiles and bathroom fixtures, where it not only kills bacteria but also helps lift stains and discoloration. Just be sure to use it with care it’s strong stuff!


Warning: Use bleach only on non-porous surfaces. Never mix it with other cleaners like vinegar or ammonia. This can create toxic fumes!


Commercial bathroom cleaners with disinfectant

Grab a commercial cleaner if pink mold keeps showing up or you’re tackling a stubborn patch in damp spots. Most are designed to kill bacteria and break down grime and stains all in one go. Most contain disinfecting agents that target bacteria while also removing grime and staining.

Pink mold trouble spots

Bathroom (showers, tiles, toilets)

Pink mould in the bathroom is incredibly common, especially in the shower area. It’s like a favourite playground for it, which is why many people refer to it as “pink shower mould.”

Pink mould in the shower

Moisture and warmth make showers the best place to grow pink mould. You’ll often find it around the drain, on silicone seals, between tiles or even on the shower head. Common problem areas:

  • Silicone seals – Pink mold loves these because of their porous texture and frequent water contact.
  • Drain areas – Water tends to pool here, making it a hotspot for mold buildup.
  • Shower heads – It’s especially likely to grow inside or around the shower head in rarely-used bathrooms.
  • Tile corners and edges – The spots don’t dry fast and can trap moisture, which breeds pink mold.

Best cleaning solutions:

  • Bleach and water solution
  • Baking soda paste
  • White vinegar spray (for regular maintenance)
  • Specialized pink mold remover products for tough or recurring cases

Pink mould on walls & shower doors

  • Glass surfaces – Smooth surfaces and moisture make shower glass doors prone to pink mold. In places where water sits, mold grows.
  • Plastic surfaces – In older or cheaper showers, plastic can trap water, attracting mold.
  • Glazed tile – They might look resistant to mould, but grout lines between tiles are especially vulnerable.
  • Shower curtains & liners – A common target for pink mold is the bottom, where moisture lingers.

Best cleaning solutions:

  • Baking soda paste
  • Bleach and water solution
  • Color-safe commercial cleaner (like OxiClean for colored fabrics)

Pink mold on tile & grout

  • Ceramic tile – In showers and wet areas, ceramic tiles can get pink mold in the grout line or on the surface.
  • Natural stone (with caution) – Stone tiles look great, but their porosity lets mold grow faster. Use bleach with caution as it can damage the stone.
  • Grout lines – Their porous structure makes them perfect for breeding pink mold.

Best cleaning solutions:

  • Baking soda paste
  • Bleach and water solution
  • pH-neutral cleaner for natural stone

Pink mold in the toilet

Pink mold can appear in:

  • Inside the bowl – The most common place for pink mold to grow.
  • Inside the cistern – Standing water can also cause pink mold to grow in the toilet tank or cistern.
  • On the seat, lid, and flush handle – They’re hotspots for bacteria buildup, including pink mold.

Best cleaning solutions:

  • Bleach
  • Bleach-based disinfectant wipes