If your coffee has started coming out slower, cooler or a little flat, the capsule is rarely the problem. Most of the time it's the machine. Every cup you brew leaves a thin layer of minerals from the water inside, and over a few months that layer adds up.
Descaling clears it out. It takes about 20 minutes, it costs very little, and it's the single easiest thing you can do to make your coffee taste the way it should. With holiday guests on the way, now is a good time to do it.
What descaling actually does
Tap water contains calcium and magnesium. When water is heated again and again inside your machine, those minerals settle on the heating element and in the narrow pipes. This buildup is called scale.
Scale causes three problems:
- Lower temperature. The heating element can't warm the water properly, so coffee comes out lukewarm and tastes sour or weak.
- Slower flow. Narrowed pipes mean less water reaches the capsule, so cups come out short or drip slowly.
- Flat taste. Poor temperature and pressure mean the coffee isn't fully extracted, and the crema thins out.
Descaling dissolves the buildup so water flows freely and heats properly again.
How often should you descale a Nespresso machine?
A good rule of thumb is every three months, or sooner if you brew several cups a day. Many Nespresso Original machines also have a descaling alert, usually a light that blinks in a specific pattern, which tells you it's time.
Water hardness makes a big difference. If you live somewhere with hard water and notice white marks on your kettle or taps, plan to descale more often. Filtered water slows buildup down, but it doesn't remove the need to descale.
Signs your machine needs descaling now
- Coffee comes out noticeably slower than it used to
- Cups feel lukewarm, even right after brewing
- The crema is thin or disappears quickly
- Your espresso and lungo buttons pour less than before
- The machine is louder or makes a strained sound while brewing
- The descaling light is on
How to descale a Nespresso Original machine, step by step
The exact button combination to enter descaling mode differs between models such as Essenza, Pixie, CitiZ, Inissia and Lattissima, so keep your machine's manual close by. The overall process is the same on all of them.
- Empty and rinse. Remove any capsule, empty the used capsule container and the drip tray, and rinse the water tank.
- Add the descaling solution. Pour the descaler into the tank and top it up with fresh water, following the amounts on the descaling kit.
- Place a large container under the spout. You'll run the full tank through, so use a bowl or jug that holds at least a litre.
- Enter descaling mode. Turn the machine on and use the button combination for your model. The lights will usually change to show the mode has started.
- Run the cycle. Let the solution run through the machine. Many models do this automatically; some ask you to press the lungo button until the tank is empty.
- Refill and run it again. Pour the used solution back into the tank and repeat the cycle once more for a thorough clean.
- Rinse well. Empty the tank, rinse it, fill it with clean water and run a full rinse cycle to remove every trace of descaler.
- Exit descaling mode. Use your model's button combination to exit, then let the machine heat up as normal.
Before your first coffee, brew one water-only cup and pour it away. Then brew a capsule and taste the difference.
Vinegar or descaling solution?
Vinegar is a popular home remedy, but it isn't the best choice for a capsule machine. It can be harsh on rubber seals and internal parts, and its smell and taste can linger in the next few cups. Nespresso recommends using a proper descaling solution, which is made to dissolve scale without damaging the machine. A descaling kit is inexpensive and lasts for several cleanings.
A simple cleaning routine
Descaling every few months handles the inside of the machine. A few small habits keep the rest of it in good shape.
| How often | What to do |
|---|---|
| Every day | Empty the used capsule container and refresh the water in the tank |
| Every few days | Run a water-only cup to flush leftover coffee from the spout |
| Every week | Wash the drip tray, capsule container and water tank with warm, soapy water |
| Every 3 months | Descale, or whenever the descaling alert comes on |
Fresh water matters more than most people think. Water that sits in the tank for days goes flat, and flat water makes flat coffee. If you want your capsules to taste their best for longer, our guide on how to store coffee capsules covers the other half of the equation.
Taste the difference a clean machine makes
A freshly descaled machine is the best way to taste what's really in the capsule. Try them side by side:
- Mazaj Blend: Lebanese Arabica with real green cardamom, intensity 5/10. At the right temperature, the cardamom comes through warm and rounded instead of sharp.
- Haneen Blend: pure Lebanese Arabica with no added spice, intensity 8/10. Proper pressure brings back its full body and thick crema.
Yasma capsules fit Nespresso Original Line machines only, not VertuoLine. Not sure which one you have? Our guide to Nespresso Original vs VertuoLine explains how to tell them apart.
Frequently asked questions
How long does it take to descale a Nespresso machine? About 20 to 25 minutes from start to finish, including the rinse.
Can I descale without a descaling kit? You can, but a dedicated descaling solution is the safer choice for the seals and internal parts. Avoid vinegar.
Does skipping descaling affect my warranty? Damage caused by scale buildup may not be covered, so check the warranty terms in your manual and keep up with regular descaling.
Do compatible capsules affect how often I need to descale? No. Scale comes from the water, not the coffee. How often you descale depends on your water hardness and how many cups you brew.
Why does my coffee still taste weak after descaling? Make sure you rinsed thoroughly, use fresh water, and check that the capsule is stored properly. Then try a bolder blend like Haneen.
Better coffee in 20 minutes
Set a reminder for every three months, keep a descaling kit in the cupboard, and your machine will brew hot, full-bodied coffee for years. Then reward yourself with a fresh box from the coffee capsules collection.
