How to Descale a Coffee Machine

28 May 2025
the look of the espresso machine in the kitchen

How to Descale a Coffee Machine: Step-by-Step Methods

To descale a coffee machine, you can use vinegar, lemon juice, or pick up a descaling product from the shop. Thinking about what to use to descale a coffee machine? Depends on what you’ve got handy or what your machine needs. Start with it empty. Mix water with vinegar or lemon, run it halfway, pause, wait a bit, then finish. Rinse it out a couple of times. If you’re asking how to descale an espresso machine, just check the label. Most tell you what to do.

Why Descaling Your Coffee Machine is Important

Limescale builds up over time from using hard water. It clings to the inside of your coffee machine—on pipes, valves, and the heating element. You can’t see it at first, but you’ll feel it. Your coffee doesn’t taste right anymore. The machine takes longer to brew. Sometimes it stops working altogether. That’s why descaling a coffee machine is so important.

Effects of Limescale on Coffee Taste and Machine Performance

  • Bitter, flat, or odd-tasting coffee
  • Longer brewing times
  • Loud gurgling or sputtering sounds
  • Reduced water flow or clogged spouts

Risks of Neglecting Descaling

Leaving your coffee maker untouched can cost you more than just bad-tasting drinks. In hard water areas, limescale builds fast. This blocks pipes and clogs the system. You might notice the water isn’t coming through at all or smells a bit strange. Machines overheat, slow down, or stop mid-cycle, that is why you need to remove limescale from the coffee machine. For those curious about descaling a coffee maker, doing nothing is what really causes trouble. 

a woman enjoys a cup of coffee

How Often Should You Descale Your Coffee Machine?

If you live in a hard water area, you’ll need to descale your coffee machine more often—around once a month. If your water is soft, every two or three months might be enough. Some machines have a light that tells you when it’s time for the coffee machine descaling. If you notice your coffee tasting strange or taking longer to brew, that’s another clue. A chalky film in your kettle or white marks around taps also mean there’s limescale in your system. Pay attention to these signs and clean it out before it gets worse.

Tips for Maintaining a Coffee Machine Between Descaling Cycles

  • Wipe down the outside of your machine daily
  • Rinse the water chamber after each use
  • Empty the drip tray and throw out used capsules or grounds
  • Run a water-only brew once a week
  • Use filtered or softened water whenever possible
  • Store your machine in a dry place
  • Don’t let water sit overnight inside the tank

Why Choose Harvey Water Softeners for Appliance Care

At Harvey, we make water softeners that work with your whole home. They don’t just fix one thing—they help everything run better. From your boiler to your washing machine, and yes, even your coffee maker.

Expertise in Water Treatment

We’ve been doing this for over 40 years. Our softeners are made in the UK and built for UK homes. No electricity needed. No guessing. Just soft water—day in, day out. If you’re tired of limescale ruining your stuff, we can help – book a demonstration.

Solutions to Protect Your Coffee Machine and Home Appliances

Soft water means less cleaning, fewer repairs, and longer life for your gadgets. That bitter taste in your morning brew? It disappears. You won’t have to descale coffee machine parts as often. And your kettle won’t go chalky after just a few weeks.

Easy Fit and Simple Use

Our softeners tuck neatly under your sink. They don’t need to be plugged in or programmed. Once installed, they just do their job quietly in the background. You don’t have to change the way you live. Just enjoy better water.