I was horrified to learn this is one of the dirtiest items in my house, but an ‘awesome’ $12 cleaning duo helps me quickly and fully sanitize it with ease

Reusable bottles are popular, good for the planet, and filthy, apparently

Kitchen with burgundy cabinets and open dish storage in an eye-level open cabinet
(Image credit: deVOL Kitchens)

Due to chronic illness, I am in a perpetual state of near-dehydration, making my water bottle one of the most important items I use every day.

That’s why I was horrified to learn it’s also one of the dirtiest items in a typical home, and even more unsanitary than the toilet. That sent me rushing to pick up a $12 bottle cleaning brush duo from Amazon to make sure every nook and cranny is free from any bacteria, mold, or hidden grime buildup.

It’s a great cleaning supply to have in your arsenal and will mean washing your water bottle is quick, effective, and positive for your health.

Why you need a bottle brush duo for cleaning dirty water bottles

With 60% of Americans owning a reusable water bottle, knowing how to handwash it properly is imperative to avoid it becoming a germ-collector.

GP and medico-legal expert, Dr Hana Patel explains, ‘Although good for the environment, these bottles are often moist, providing a breeding ground for bacteria from the user's mouth, food particles, and hands. Without regular and sufficient cleaning, these bacteria can lead to illness.

‘It is advised to ideally wash these bottles daily, to avoid any bacterial growth or moisture buildup. Pay particular attention to hard-to-clean areas such as straws and small crevices, as this is where bacteria can grow if not adequately cleaned.’

That is exactly why I love using this brush duo to clean my vacuum-insulated and brilliant Bottle Bottle, available on Amazon.

Its stiff bristles and long arm help you get soap and scrubbing power to the very bottom of the bottle, where hands won’t fit, and the thin scrubber, which sits inside the main brush for compact and easy kitchen sink storage, moves easily in and out of the built-in straw that most reusable and leakproof bottles have.

I particularly like that the stiffness of the bristles means you can scrub the ridges and grooves so commonly found in reusable bottle design, especially around the lid and flip-down straw components.

With more than 200,000 species of microbes, including bacteria and fungi, potentially lurking in your water bottle, and making your reusable drink bottle the third dirtiest household item after the toilet, according to research conducted by Clear It Waste, it’s vital to get all these corners sanitized daily.

Happy shoppers on Amazon sing the 2-in-1 bottle brush’s praises, giving it an average rating of 4.8/5 stars and thousands of positive reviews.

Verified shopper Zack James says it’s ‘great for washing water bottles and travel mugs, giving it the full five stars. He adds, ‘The straw brush is great and gets into small spots and cleans well. The larger brush is great for inside the bottle or mug, and both of them have nice grips and high-quality bristles. I would buy this product again!’

Another verified shopper in the US, Jayme, says it’s an awesome brush’ and that they will ‘never buy another brand brush’.

Others also use it for cleaning dishes, and stain-magnet coffee pots.

What to shop


Next, learn about the handy and adjustable bottle organizers that fit in kitchen cabinets to keep your messy collection neatly tucked away.

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Punteha van Terheyden
Head of Solved

Punteha was editor of Real Homes before joining Homes and Gardens as Head of Solved. Previously, she wrote and edited lifestyle and consumer pieces for the national press for 16 years, working across print and digital newspapers and magazines. She’s a Sunday Times bestselling ghostwriter, BBC Good Food columnist and founding editor of independent magazine, lacunavoices.com. Punteha loves keeping her home clean, has tested and reviewed the latest robot vacuums, enjoys cooking, DIY, and spending weekends personalizing her newly-built home, tackling everything from plumbing to tiling and weatherproofing.

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