"Not a trace of limescale": best kettles for hard water

If you live in a hard water area such as London or the South East of England, minerals like calcium and magnesium in your tap water can leave your kettle prone to a build-up of unpleasant limescale. Limescale can not only taint the taste of your favourite morning brew, but it can also reduce the efficiency and lifespan of your kettle, meaning you may need to replace them more regularly.

The good news is that you can buy kettles with concealed elements and limescale filters which, when combined with regular cleaning and maintenance cycles, can help combat some of the challenges of hard water. These, along with your favourite air fryer and toaster, can make daily kitchen life a tad easier.

If you’re tackling limescale and midweek meal prep, our best food processors guide is worth a look too.

Best kettle for hard water UK: at a glance

Jump to products

Best kettle for hard water overall: Russell Hobbs Brita Purity Glass Kettle
Best budget kettle for hard water: Russell Hobbs Brita Purity Filter Plastic Kettle
Best kettle for longevity: Dualit Architect Kettle
Best variable temperature kettle for hard water: The Sage Smart Kettle
Best retro style kettle for hard water: De'Longhi Icona Metallics Jug Kettle
Best hot water dispenser for hard water: Breville Brita HotCup Hot Water Dispenser

How we tested the best kettles for hard water

Testing out the best kettles for hard water areas

To bring you our pick of the best kettles for hard water areas, we sought out tried-and-tested reviews from Mumsnet users, gaining insights into the kettles they’ve used in their own homes. Combining their verdicts with the views of industry experts and consumer champions, we whittled down a shortlist of the best hard water kettles to suit every budget and lifestyle.

Then, we conducted our own extensive research, testing out kettles in a hard water area. Mumsnet's Senior Content Editors Rebecca Roberts and Natasha Gregson put select models through their paces, scoring them on these key areas:

How effective the limescale filter is
Additional features
Ease of use and cleaning
Overall value for money

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What's the right kettle for hard water for you?

1

Best kettle for hard water overall

Russell Hobbs Brita Purity Glass Kettle

Best Buy Top Tested

Check price at Amazon Check price at Argos Check price at John Lewis

What we like

Noticeably reduces limescale in hard water areas
Glass design feels more premium and less utilitarian
Simple, intuitive Brita filter system
Fast boil once filled
A good option if you’re trying to cut down on plastic

What we don't like

Slower to fill than a standard kettle
Smaller usable capacity than expected
Ongoing cost of replacement filters

Key specs

RRP on writing: £70 | Capacity: 1 litre | Speed: Approx 45 seconds for one cup | Power: 3000W | Filter: Yes, replaceable BRITA Maxtra+ cartridge

What Mumsnet users say

Hopeful16 · Recommended product range

We have a kettle with a Brita filter in it. Not overly expensive and does the trick.

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Our verdict

Tried and tested by Mumsnet Senior Content Editor, Rebecca: read her review of the Russell Hobbs Purity Glass Brita Kettle.

A stylish glass kettle with polished silver accents, the Russell Hobbs Brita Purity Kettle looks properly smart on the worktop – but it’s not just there to be decorative. Mumsnet's Senior Content Editor Rebecca tested it in a hard water area and found it effective at tackling the usual chalky build-up.

It comes with a Brita Maxtra+ water filter, which helps reduce limescale and chlorine, and can also absorb metals such as copper and lead that may affect the taste of hot drinks. The catch is that you’ll need to replace the filter regularly – roughly every four weeks, depending on how often you boil. There are handy built-in indicators to tell you when it’s time, but it’s worth budgeting for replacements (around £4.50 each on Amazon) and remembering it’s an ongoing cost.

In day-to-day use it’s pleasingly straightforward. The anti-splash ‘Perfect Pour’ spout does what it promises, and the 360° base with integrated cord storage keeps things neat. Rebecca particularly liked the blue illumination while it’s boiling, and the glass body makes it easy to see how much water’s left. Once it’s filled, it’s quick to boil too.

Rebecca found that there are a couple of practical niggles, though. Because the water filters through as you fill, it can feel slower than a standard kettle when you’re in a rush. And while the stated capacity is 1 litre, it’s best thought of as around four cups’ usable capacity. The ‘one cup’ feature is brilliant for avoiding water (and energy) wastage, but if you’ve got a big household, constantly host, or use the kettle for cooking as well as cuppas, you may prefer one of the larger-capacity options below.

2

Best budget kettle for hard water

Russell Hobbs Brita Purity Filter Plastic Kettle

Check price at Amazon Check price at Argos

What we like

Not a trace of limescale during testing
Easy-to-remove limescale filter
Affordable
Quiet when boiling
Illuminates blue when boiling
Reminder for replacing cartridge

What we don't like

Not very stylish
Condensation gives a cloudy rather than clear effect
Lower capacity than other options
Need to buy replacement filters

Key specs

RRP on writing: £23 | Capacity: 1 litre, with 0.5 litre hopper capacity | Speed: 500ml boils in around 56 seconds | Power: 3000W | Filter: Yes, detachable

What Mumsnet users say

Hopeful16 · Recommended product

We have a kettle with a Brita filter in it. Not overly expensive and does the trick.

See Post

Our verdict

Tested by Mumsnet tester Natasha Gregson: Read her in-depth Russell Hobbs Brita Purity Filter Plastic Kettle review.

OK, so this is very similar to the Russell Hobbs glass kettle above, but it's slightly easier on the wallet if you're after a budget-friendly option. You will need to factor in the cost of the Brita replacement cartridges (around £4 per month), but for crystal clear water you may think it's worth the expense.

When I tried it out in a hard water area, I was extremely impressed that limescale didn't gather at the bottom like I've experienced with other kettles. As a test, I even removed the mesh limescale filter at the spout and poured a mug of boiling water - there wasn't a single speck of limescale visible thanks to the Brita filtration system.

There are some drawbacks, however. It's not the most stylish option, and the condensation on the inside gives the kettle a cloudy look. The capacity is also lower than some other models, but all in all, I rate this as the best value kettle for hard water areas. The blue illumination when it's boiling is a great novelty touch, too.

3

Best hard water kettle for longevity

Dualit Architect Kettle

Check price at Argos Check price at Dunelm Check price at John Lewis

What we like

Stylish design
Matching toaster available
Concealed element
Viewing window with measurements in cups
Interchangeable panels

What we don't like

Costly
Slower to boil than some options
Limescale filter not as effective as some options

Key specs

RRP on writing: £100 | Capacity: 1.5 litre | Speed: Minimum capacity (500ml) takes one minute, 40 seconds | Power: 2300W | Filter: Yes, removable

What Mumsnet users say

TheGreatestAtuin · Recommended product

[...] I've ended up with a Dualit Architect and I love it. I know it's just a kettle. But it's beautiful! And also seems to perform pretty well as a kettle (unlike the burning devil of a Dualit toaster we had). [...]

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Our verdict

Tested by Mumsnet home and kitchen editor Natasha Gregson: Read our in-depth Dualit Architect Kettle review

If you live in a hard water area but are seeking a kettle that can last the test of time, Mumsnet users speak incredibly highly of the Dualit Architect Kettle. With a modern, stylish design, I loved how robust and sturdy this stainless steel kettle felt; it's clearly built to stand years of use.

Plus, if the thought of being stuck with the same kettle for years doesn't appeal, the interchangeable panels (sold separately) allow you to refresh the look and feel of your kettle if you do decide to overhaul your kitchen colour scheme.

It also has a removable filter and concealed element that helps keep water away from the heat source, reducing the risk of limescale damage that can affect your kettle’s performance over time. However, between descales, I did sometimes find the filter let some limescale through (though I did test it in a very hard water area).

While it has a slightly smaller capacity than some, this sustainable choice has a clearly marked water gauge that helps you to only boil what you need - between one and six cups at a time. It’s not the cheapest option though, and you will need to give it a wipe regularly to get rid of water marks.

4

Best variable temperature kettle for hard water

The Sage Smart Kettle

Top Tested

Check price at Amazon Check price at Lakeland Check price at Sage Check price at John Lewis

What we like

Stylish stainless steel design
Large seven-cup capacity
Keep warm function
Range of temperature settings to suit different hot drinks
Cordless jug on 360° base

What we don't like

Costly
Exterior marks easily from water
Minimum level of two cups per boil
Some found the limescale filter was not as effective as other hard water kettles

Key specs

RRP on writing: £88 | Capacity: 1.7 litres | Speed: Minimum capacity (500ml) takes one minute, 40 seconds on 95°C setting | Power: 2400 W | Filter: Yes, built in

What Mumsnet users say

MNHQ editor Natasha Gregson · Tried & Tested

Sage's The Smart Kettle was a dream to use. The buttons for each setting on the 360-degree swivel base label the type of drink each temperature is suited to, so it was just a case of pressing the right one for the drink I wanted, before pressing the start button.

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Our verdict

Tested by Mumsnet home and kitchen editor Natasha Gregson: Read our in-depth Sage The Smart Kettle review

This striking stainless steel kettle may not come cheap, but with five different presets, it can serve your drinks at exactly the right temperature for the best flavour and experience - ideal for those tea and coffee connoisseurs.

During testing, I found it was super easy to use, plus it even has a handy ‘keep warm’ function, which maintains the water temperature and prevents the need to reboil. No wonder it won me over and nabbed the top spot for speciality tea lovers on our overall best kettles round-up.

It has a large capacity, so you'll be sorted whether it's for your morning brew before breakfast or a seven-cup coffee catch-up with friends. It’s worth mentioning, however, that the minimum water level is two cups, so if you’re catering for one, you’ll inadvertently be boiling more than you need.

Some reviewers found the limescale filter wasn't as effective as other options, but it worked fine for me during testing and prevented the limescale that had collected at the bottom from getting into my cuppa. The only thing to note is the stainless steel design showed watermarks easily, so it will need a quick wipe from time to time.

5

Best kettle for hard water with a retro design

De'Longhi Icona Metallics KBOT3001.BG Jug Kettle

Check price at Currys Check price at De'Longhi

What we like

Effective limescale filter and concealed element ideal for hard water areas
Available in a choice of four metallic colourways
Very stylish
1.7-litre capacity can serve up to seven cups per boil
Coordinating toaster

What we don't like

Noisy
The view of the water level indicator is blocked by the handle
Expensive at full RRP

Key specs

RRP on writing: £70 | Capacity: 1.7 litres | Speed: Approx 60 seconds for 1 cup | Power: 3000W | Filter: Yes, removable

What Mumsnet users say

Tara336 · Recommended brand

I have a De'longhi kettle and toaster and found them to be very reliable and they look quite nice too.

See Post

MNHQ editor Natasha Gregson · Tried & Tested

It may be simple to operate, but the Icona works hard to make your favourite hot drink - and with speed too. Boiling one cup of water in just under a minute, it can serve you warm drinks in no time. The limescale filter was excellent too, making it a great kettle for hard water areas.

See Post

Our verdict

Tested by Mumsnet home and kitchen editor Natasha Gregson: Read our in-depth De'Longhi Icona Metallics Kettle review

If you’re seeking a more retro look for your kitchen, but don’t want to sacrifice on modern features, you can’t go wrong with the De'Longhi Icona range of metallic jug kettles. Available in a choice of four colourways including silver and gold, purple (plum) and blue (teal), they also have a coordinating toaster range if you wish to complete the set.

I loved that the De'Longhi Icona boils as little as one cup at a time (ideal for reducing water and energy use), or for cooking and larger gatherings it can be filled to a capacity of 1.7 litres (around seven cups).

When I tested it out, I did find it was quite noisy, and the view of the water gauge is somewhat restricted by the handle. It's also a pricey option at full RRP (£115) - though it's currently reduced to just £70, leaving with you with enough dosh left over to put towards the Icona toaster too.

On a brighter note, I tested it out in a hard water area and was pleased with the results - with a concealed heating element and a limescale filter that’s completely removable for cleaning, it was stress-free and easy to maintain.

6

Best hot water dispenser for hard water

Breville Brita HotCup Hot Water Dispenser

Check price at Amazon Check price at Robert Dyas

What we like

Speedy 50-second boil
Select from nine different cup sizes
Permanent limescale filter
Energy efficient - only boils the water it uses
Drip tray

What we don't like

A traditional kettle may be more efficient when making drinks for large groups

Key specs

RRP on writing: £67 | Capacity: 1.8 litres | Speed: Less than 50 seconds for 1 cup | Power: 3000W | Filter: Yes, Brita

Our verdict

Ideal for busy parents who have always got their hands full, the Breville Brita HotCup Water Dispenser makes an energy-efficient choice, only boiling the water it dispenses at the touch of a button. Simply select from one of nine different cup sizes and dispense boiling water in less than 50 seconds - ideal when you’re a little more pressed for time.

With a stainless steel design, convenient drip tray and Brita filter system, cleaning this hot water dispenser also a breeze, making it easy to maintain even with the challenges of hard water.

The 1.8-litre water tank has a capacity for up to nine cups of tea, so it is a convenient working-from-home accompaniment, however, you may find a traditional kettle more suitable for larger gatherings of friends and family.

What is hard water?

Hard water is water that has a high mineral content and is most commonly found in London and the South East of England. The presence of minerals such as calcium and magnesium in water can result in a build-up of limescale deposits on home appliances such as kettles, washing machines, regular-sized or slimline dishwashers, plus much more.

If you live in a hard water area (you can check this via this hard water map), you need to carry out regular maintenance of your kettle to help prevent limescale build-up and prevent performance issues.

How to choose the best kettle for hard water

To pick the best kettle for hard water, here are some things you may want to consider:

Material - What is the kettle made from? Plastic kettles can be durable and hard-wearing but are often a little more challenging to clean. Stainless steel kettles tend to be the most resistant to corrosion and water damage, while glass kettles allow you to visually see when there is a build-up of limescale starting to occur.
Concealed elements - Kettles with concealed elements tend to be less susceptible to limescale, mostly because the part that heats up doesn’t make contact with the water. While exposed elements tend to heat up a little bit quicker, they can be more challenging to clean.
Filter - Does the kettle have a limescale filter? Some kettles have removable limescale filters that can trap any impurities in the water. Permanent filters need to be cleaned regularly by hand, whereas others, such as the Brita Purity Kettle need to be replaced around once a month.
Cup measurements - Kettles that have a water gauge and allow low-volume boils can not only reduce the amount of energy and water used, but they can also prevent limescale build-up by only boiling the amount of water that you need.
Boil dry protection - Many kettles now feature boil dry protection, which prevents the kettle from boiling when the water level is too low.

How to clean and descale a kettle

Cleaning your kettle regularly can not only improve the taste of your morning coffee, it can actually improve the efficiency and lifespan of your kettle too, so you’ll need to replace it less regularly.

Whilst the prospect of cleaning and descaling your kettle may be a little daunting, it’s actually relatively straightforward - and can be done so with ingredients you may already have in your home.

Prepare a mix of equal parts water and white vinegar - enough to fill around three-quarters of your kettle’s water tank.
Boil the kettle before leaving to cool completely or simply leave for a few hours to allow the acid in the vinegar to get to work.
Drain the mixture away and rinse out.
If stubborn limescale remains, use a scrubbing brush or old toothpaste to remove any excess.
Boil again with clean water and repeat a few times to ensure no vinegar or limescale residue remains.

Related: Discover the best vacuum sealer

How can I prevent limescale in my kettle?

While it is hard to avoid limescale completely when living in a hard water area, there are some steps you can take to prevent it:

Only boil as much water as you need - This uses less energy and prevents water from sitting stagnant between kettle boils.
Use filtered water - Boiling filtered water can help remove the calcium and magnesium build-ups found in tap water.
Regular cleaning - Cleaning your kettle regularly can take action on limescale before it has the chance to fully form across your kettle’s surfaces.

How we chose the best kettle for hard water

Recommendations from real parents

As always, we first looked at what Mumsnetters on our Housekeeping forum were recommending. To find the best kettle for hard water, we first sought the trusted opinions of Mumsnet users, getting their feedback on the kettles that they rate, recommend and use in their own kitchens, noting the ones that performed well in hard water areas. We looked for products with crucial features such as concealed elements and limescale filters, which Mumsnet users praised for their ease of use and stress-free maintenance.

We also looked out for any negative reviews, where Mumsnet users highlighted kettles that they felt were poor quality, overpriced or failed to keep limescale at bay during regular use.

Expert opinions

Next up, we considered reviews and feedback from trusted industry experts. We want to be confident that the products we recommend are fit for purpose and excel when making your favourite hot drink, so we looked out for award-winning products or those that were well regarded in the marketplace, including those recommended by consumer champions.

Authentic consumer reviews

We thoroughly investigated genuine, in-depth customer reviews on retailer sites such as Amazon, John Lewis, and Argos to get wider consumer experiences regarding the products on our shortlist, so you can be confident our selection will make the the perfect brew every time, whether you're a coffee connoisseur or a green tea aficionado.

Rigorous testing

Finally, MNHQ Senior Editor Natasha Gregson put select kettles on our shortlist through their paces, testing them out in her London home. She carefully assessed the kettles on their ease of use, features, performance, and how well they fared in a very hard water area.

About the author

Lucy Cotterill is a mum of two and a Content Writer at Mumsnet, specialising in baby, child and lifestyle product reviews and round-ups. Having written product reviews on her own blog Real Mum Reviews since 2012, Lucy loves to research and explore the pros and cons of products, scrutinising reviews and consumer feedback to help people make confident purchases.

Working from home four days a week, Lucy is well acquainted with her own kettle – the Dualit Architect, which is still going strong despite regular use – so she was keen to seek out the best kettle for hard water for Mumsnetters. She’s also written several Mumsnet kitchen appliance guides.

Originally from a HR background with a degree in Business Studies, Lucy developed a real passion for blogging and writing when her children were young, going on to write for several online publications including US parenting site Pregistry and the Evening Standard. When she’s not manically tapping the keys of her laptop, Lucy loves nothing more than to cosy up with her Kindle and enjoy the latest thriller, or compete in Nintendo Switch rallies with her daughters aged six and 10.

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