Hard water is the term we use to refer to water that has high mineral content, the principle of which is lime. Now, you can drink lime, but it doesn’t taste very nice, so you want appliances that are capable of purging it from the water you consume.
It also causes limescale build-up, which is problematic for most appliances, severely reducing their functional longevity.
We’ve gathered five kettles below, most of them from brands you’re sure to recognise, which are capable of treating hard water to get rid of lime and other troublesome minerals.
Each entry will have its pros and cons mapped out, and we’ve also included more information about how we judged these kettles in the buyers’ guide below.
In a hurry? This is our winner!
Best Kettle for Hard Water – Comparison Table
Best Kettle for Hard Water – Reviews
Best Kettle for Hard Water – Buyer’s Guide
How to find the best kettle for hard water
It may not be often that you sit down and think about what goes into making a kettle, and so what makes one kettle better than another. This can get even more complicated when you’re considering a specific use for that kettle, like the purging of lime and other minerals from your water.
For the purpose of this buyers’ guide, we have separated kettle properties into three broader categories, the water filtration system, the kettle body features, and the kettle base features.
Water Filtration System
Given why we’re buying these kettles, it’s no surprise that you should be focusing on the water filtration system for these products. You should be looking for filters from proven brands, with ones like BRITA featuring prominently in the list above, so you can be sure that they’ll work well.
The best kettles will be able to filter and boil the water all at once, making it as simple and convenient as using a kettle without an in-built filtration system. You want the filter cartridges to be easy to remove and clean, so you can re-use them and, when they’ve gone past their prime, should also support replaceable filter cartridges.
Some kettles will often have small panels or lights that’ll tell you when your filters should be replaced, allowing you to be on top of your water filtration duties.
As for the rest of the kettle, the body is the first thing most notice. Usually this is on a superficial level, such as whether the jug is made from glass or plastic, with plastic breaking down over time and giving water a plastic-y taste. We prefer glass or other glass-like materials in combination with stainless steel, since these reduce the growth of limescale well by resisting scratches that they could accrue.
You also might want to consider the litre capacity, with most being between one whole litre to one point eight litres. We think that this isn’t so important, hence why our number one is actually the smallest in terms of litre capacity, because we understand you’re shopping for filtration ability. The same can be said for the element wattage of your kettle, which will usually have an effect on the boiling time of your kettles.
If your kettle body is opaque, then you should want a water window and gauge that’ll help you to see the water level inside, with the gauge showing you how much there is in millilitres, litres, or, if your kettle is fancy, cups. This isn’t a big consideration with a transparent kettle, of course, though you should still want a water gauge that’s easy to read against the glass. LEDs lights are also preferable since they’ll make it easy to see when the kettle is on, something that’s great for children or others who may have trouble discerning if the kettle is hot or not.
At the top of your kettle, you can also get a specially designed spout that reduces splashback, keeping your hands safe and making sure that no water is wasted.
There are a number of features to look out for with the base of your kettle, too, the most obvious being non-slip feet or a secured underside so that your kettle doesn’t slip and slide over the countertop when you try to move it, helping you to avoid disastrous spills.
You should also want a kettle that can rotate 360 degrees on its base, especially if there’s a mix of right and left-handed people in your household. A rotating base makes it easier for both to grab and lift this kettle without incident.
Another handy feature to look for on your kettle is the ability to wrap any additional cord around the base in a way that doesn’t obstruct it, keeping your loose wiring minimal and so minimising the chance that they’ll pull the kettle over.