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Product testing has revealed the best - and worst -
bathroom cleaning products to remove soap scum.
After testing 18 different spray, wipe, liquid and gel
products, Consumer New Zealand recommends just three products
and reveals five low-ranking cleaners.
The top scorers were Dettol Power & Pure Bathroom and Oz
Kleen Shower Power with 5-star ratings, and Ecostore Bathroom
& Shower Cleaner with 4.5 stars.
At the other end of the scale, Domestos Thick Original
Liquid, Easy-off Bam Active Foam Soap Scum & Shower
Spray, Exit Mould Spray, White King Power Clean Bathroom Gel
and Select Scrub & Wipe Multi-Purpose Wipes earned 2
Products were tested on their effectiveness at removing a
"special blend of soap scum" baked on to white ceramic tiles.
Each cleaner was tested on eight tiles, and each tile was
scrubbed 20 times with a mechanical scrubber.
The scum-removal rating was given by measuring light
reflection before and after scrubbing.
Malcolm Rands, founder and chief executive of ecostore, said
the "great" results supported changing perceptions about
"There's a lot of prejudice from the past that eco products
cost too much and don't really work and we are right up
against that," he said.
"But now lots of companies are looking at plant-based
chemicals and there is some fantastic research coming out and
we are being looked to as a world leader."
He said the 4.5-star rated cleaner used just three
ingredients, compared to more than 20 in some of the
Other cleaning-product firms the Herald contacted did not
respond to queries by press time last night.
As well as the three top-rated cleaners, five sprays and two
wipes were worth considering, according to Consumer NZ.
They were Ajax Professional Ultra Bathroom; Home Brand Bath
& Shower Cleaner; Mr Muscle Shower Clean; Mr Muscle 5 in
1 Total Bathroom; Sparkle for Showers; Dettol Scrub 'n' Wipe
Citrus Wipes, and Viva Shower Fast Wipes.
Overall, bleach products were discouraged.
"Bleach isn't the best way to get rid of mould, which feeds
off soap scum, because it can discolour mould at lower bleach
concentrations. So you think it's done the job when it
hasn't," the report said.
As well as commercial products, a mix of baking soda
sprinkled on to soap-scum and then sprayed with undiluted
vinegar was given a 3-star rating - the same score as three
"This is probably all that's needed to keep most bathrooms
clean. Plus there's the added benefit that vinegar kills
mould and its spores."