Last updated: 5 November 2026
The experts who have looked at this broadly agree: silicone toilet brushes have a hygiene edge over traditional bristle brushes because silicone is non-porous, so grime rinses off rather than getting trapped between tightly packed fibres. Which? says newer silicone brushes "often have an edge over traditional nylon bristles", and a microbiologist interviewed by ABC News put it simply: "The silicone ones are much better." The experts are just as clear that material is only half the story; how you dry, store and replace your brush matters too. If you want a silicone brush built around those habits, the Moostar Soap Push is our pick.
What the experts say about bristle brushes
The main criticism of traditional nylon or plastic bristle brushes is that they are hard to get properly clean.
- Expert Reviews (Sarah Matthews) says bristle heads are "so tightly packed together that it's impossible to clean them perfectly", so bacteria build-up is likely, and bristle brushes need replacing more often.
- Helen Stratton, associate professor of microbiology at Griffith University, told ABC News: "The bristle brushes, they're actually quite porous."
- Isabella Flores, cleaning expert at Sparkly Maid San Diego, told Tom's Guide that bacteria "accumulate so quickly within the bristles", and that once a bristle brush is twisted or frayed, "bacteria have attached themselves deeply within the bristles and can only be fully addressed through replacement."
What the experts say about silicone brushes
- Which? (Jonny Martin, August 2026): "In theory, silicone is non-porous, so it's less likely to harbour bacteria and grime rinses off it more easily."
- Isabella Flores (via Tom's Guide): "Silicone is non-porous, making it incapable of absorbing bacteria, oils, and organic matter, as plastic bristles do."
- Helen Stratton (via ABC News) said silicone resists bacteria attaching better than bristles, so it stays cleaner and lasts longer. Cleaning business owner Jason Shipway, in the same piece, put nylon and plastic brushes at a few months of use and silicone at up to about two years, and felt silicone's higher price pays off over time.
Where the experts add a caveat
Silicone isn't automatically better at scrubbing. Expert Reviews warns that silicone heads shaped like bristle brushes can have "weak bristles that don't do a great job on stubborn dirt". Some Mumsnet users report the same thing with dried-on marks. That's why head design matters: it needs to be firm enough to scrub and flexible enough to reach under the rim. The Soap Push uses a mix of long and short silicone bristles, and for heavy limescale any brush will need a descaler first (see our guide on whether silicone brushes clean stubborn stains).
Silicone vs bristle: the expert view at a glance
| Bristle (nylon/plastic) | Silicone | |
|---|---|---|
| Surface | Porous fibres, tightly packed (Expert Reviews, Stratton) | Non-porous (Which?, Flores) |
| Keeping it clean | "Impossible to clean them perfectly" (Expert Reviews) | Grime "rinses off it more easily" (Which?) |
| Lifespan | A few months of use (Shipway) | Up to about two years (Shipway) |
| Stubborn dirt | Good scrubbing power while new | Depends on head design; weak bristle-shaped heads struggle (Expert Reviews) |
| Replace when | Frayed, twisted or discoloured (Flores, Shipway) | Worn or discoloured; a replaceable head keeps cost down |
The habits experts recommend for any brush
- Let it dry over the bowl. Which? suggests wedging the handle between the seat and the rim so the head hangs over the bowl. Shipway recommends the same, leaving it "for about 10 to 15 minutes". Stratton explains why: "Most microbes and particularly human pathogens don't like to be dried out, they'll die."
- Don't put it away dripping. Cleaning expert Melissa Maker told Real Homes: "Never place a wet brush back into the brush cup."
- Rinse after every use. Stratton recommends a water flush after each use and a deeper clean weekly or monthly, depending on how busy your bathroom is.
- Clean the holder too. Harpic's Juliette Bandinu (via Real Homes) recommends rinsing the holder with clean, hot water and wiping it down.
- Replace on time. Expert Reviews says "it's recommended that you replace your toilet brush every six months". See how often to replace a toilet brush.
How the Moostar Soap Push fits the expert advice
- Non-porous silicone head with long and short bristles that flexes under the rim.
- One-push, hands-free head release, so you never touch a used head, and a replacement head costs £9.99.
- Sealed base unit: after the brush has dripped over the bowl, any remaining drips stay contained in the base rather than reaching your floor. Empty and rinse it now and then. More tips in how to stop your toilet brush dripping and smelling.
- Built-in cleaner reservoir in the 304 stainless steel handle, released through the head with a press.
- Independent recognition: Good Housekeeping Institute Approved 2026; Winner, Best Toilet Brush, woman&home Reader Approved Awards 2026 (9.2/10); GoodHomes Approved.
Honest cons: it costs more upfront than a basic bristle brush, the reservoir needs topping up, and replacement heads are an ongoing cost.
The verdict
The expert view is consistent: tightly packed bristles are hard to keep clean, while non-porous silicone rinses clean more easily and tends to last longer. Pick a silicone head that's firm enough to scrub, let it dry over the bowl, keep the holder clean and replace the head when it wears. The Moostar Soap Push is designed around exactly that.
Shop the Soap Push: Stainless Steel, Black and Grey £17.99; Luxe Copper, Gold and Chrome £25.99; brush + spare head bundle £25.88 (at the time of writing, 5 November 2026). Free next-day UK delivery on orders over £10.
FAQ
Are silicone toilet brushes really more hygienic than bristle ones?
Which? says silicone is non-porous, so it's less likely to harbour bacteria and grime rinses off it more easily, and Expert Reviews says tightly packed bristles are impossible to clean perfectly. You still need good habits: rinse, let it dry over the bowl and replace the head when worn.
What do microbiologists say about toilet brushes?
Microbiologist Helen Stratton told ABC News that bristle brushes are "quite porous", that "the silicone ones are much better", and that drying a brush out helps because most pathogens don't survive being dried.
How long does a silicone toilet brush last compared with a bristle brush?
Cleaning business owner Jason Shipway (via ABC News) put nylon and plastic brushes at a few months of use and silicone at up to about two years. Expert Reviews recommends replacing a toilet brush every six months, so replace the head whenever it looks worn.
Do silicone toilet brushes clean as well as bristle brushes?
A well-designed one does. Expert Reviews warns that weak, bristle-shaped silicone heads can struggle with stubborn dirt, so choose a firm head with a good shape.
Sources
- Which?: Best toilet brushes, tried and tested (Jonny Martin, 18 Aug 2026)
- Expert Reviews: Best toilet brush (Sarah Matthews, updated July 2024)
- ABC News: How do you clean a toilet brush and when should you change it? (4 Apr 2026)
- Tom's Guide via Yahoo: How often should you change your toilet brush? (27 Apr 2026)
- Real Homes: How to clean a toilet brush
- Mumsnet Talk: Toilet brushes – what am I missing
- woman&home Reader Approved Awards 2026
- Moostar: product range and prices
