Why should you descale your coffee maker?
What does limescale build up actually do to your coffee maker?
Here at Tom’s Guide our expert editors are committed to bringing you the best news, reviews and guides to help you stay informed and ahead of the curve!
You are now subscribed
Your newsletter sign-up was successful
Want to add more newsletters?
Daily (Mon-Sun)
Tom's Guide Daily
Sign up to get the latest updates on all of your favorite content! From cutting-edge tech news and the hottest streaming buzz to unbeatable deals on the best products and in-depth reviews, we’ve got you covered.
Weekly on Thursday
Tom's AI Guide
Be AI savvy with your weekly newsletter summing up all the biggest AI news you need to know. Plus, analysis from our AI editor and tips on how to use the latest AI tools!
Weekly on Friday
Tom's iGuide
Unlock the vast world of Apple news straight to your inbox. With coverage on everything from exciting product launches to essential software updates, this is your go-to source for the latest updates on all the best Apple content.
Weekly on Monday
Tom's Streaming Guide
Our weekly newsletter is expertly crafted to immerse you in the world of streaming. Stay updated on the latest releases and our top recommendations across your favorite streaming platforms.
Join the club
Get full access to premium articles, exclusive features and a growing list of member rewards.
The best coffee makers make brewing a morning cup as easy or complex as you'd like it to be. Built with convenience in mind and with the top models celebrated for their ease of use, our morning saviours sit quietly in the corner ready and waiting to pour us the perfect cup, sometimes at the touch of a button.
However, there is a little work required for a coffee maker to continue producing your morning brews without a hiccup — descaling.
Every time your coffee maker boils water, that water leaves behind a range of mineral deposits. These deposits could spell disaster for the inner workings of your machine if left to build up too much, with magnesium and calcium being the worst offenders. This is a particular concern, and will happen far quicker, if you live in an area with harder water.
Over time, these deposits calcify and form a white, chalky coating over the internal heating system, temperature gauge, water dispersal system, and the inside of your carafe. Those are pretty integral parts of your coffee maker, and they certainly won't work as well with a thick layer of limescale clogging them.
Leaving these deposits to cling to the inner workings of your coffee maker will block the water flow, stop your machine accurately gauging the temperature of your coffee, and make it work harder to brew each cup. All of this will lead to a coffee that's not quite hot enough (with a weaker flavor to boot), higher energy consumption, and overall damage to the components under the hood as well. Too much limescale can even clog the spray head and reduce the water moving through your system as well.
That means a worse experience for both you and your trusty brewer, so regular descaling at intervals of at least every three months is required to break down any deposits that have built up. We can show you exactly how to clean your coffee maker, and how to descale a Nespresso as well.
We're also rounding up all the best Nespresso machines, as well as the top Cuisinart coffee makers and the best espresso machines .
Get instant access to breaking news, the hottest reviews, great deals and helpful tips.
Tabs is a deals editor on our sister site TechRadar. She spends most of her time searching for the best prices on top consumer tech, but has also written about everything from flower delivery to mattresses. Happiest with a DualSense controller in her hand, she's also contributed to GamesRadar and T3 and specializes in gaming hardware and computing.

