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DeLonghi makes many of the UK’s most popular Nespresso machines — from the compact Inissia and Pixie to the Citiz, the milk-frothing Lattissima range and the whole Vertuo line. So when your coffee starts pouring slowly or tasting flat, knowing how to descale a Nespresso DeLonghi machine is the fix. The catch: the exact buttons you press depend on which model you own, not the DeLonghi badge on the front. This guide shows you how to identify your machine and follow the right descaling steps, in about 15 minutes.
Why descaling De’Longhi machine matters — whatever the model
Every DeLonghi Nespresso machine heats water, and heated hard water leaves behind limescale. Those mineral deposits slowly coat the heating element and narrow the internal pipes, so the water flows more slowly and can’t reach the right temperature. The result is a cooler, weaker cup — and eventually a machine that won’t brew at all.
Descaling dissolves that build-up and brings back the pressure and heat your machine needs. Nespresso recommends doing it every 3 months or every 300 capsules, whichever comes first — sooner in hard-water areas. Most DeLonghi Nespresso machines will also show a descaling light or alert when it’s due.
First, identify your DeLonghi Nespresso model
The descaling routine falls into three groups. Check the top or front of your machine:
- Two-button Original models (Inissia, Pixie, Citiz, Essenza Mini): two cup-size buttons — Espresso and Lungo.
- Lattissima range (Lattissima One, Touch, Pro, Gran Lattissima): multiple buttons including milk/coffee recipe buttons and, usually, a dedicated descaling alert.
- Vertuo line (Vertuo, Vertuo Plus, Vertuo Next, Vertuo Pop): a single large button and a lever that unlocks the head.
Whichever you have, the preparation and rinsing steps are identical — only the way you enter descaling mode changes.
What you’ll need to clean your machine
- A sachet of Nespresso descaling solution (or a coffee-machine descaling kit)
- A container that holds at least 1 litre
- Fresh, potable water
- A few spare minutes and a sink nearby
How to descale a Nespresso DeLonghi machine, step by step
Step 1: Prepare the machine
Turn it on and remove any used capsule. Empty and refit the capsule container and drip tray, and make sure there’s no pod inside. Empty the water tank, then add one sachet of descaling solution and top up with fresh water (around 500ml–1 litre, depending on the model). Sit your 1-litre container on the drip tray, under the coffee outlet.
Step 2: Enter descaling mode (by model)
This is the only part that differs:
- Two-button Original models: with the machine on, press and hold the Espresso and Lungo buttons together for about 3 seconds until they blink.
- Lattissima models: these have their own sequence — typically turning the machine on and pressing the specified button (or button combination) shown in your manual until the descaling light stays lit. The descaling alert usually comes on by itself when a descale is due.
- Vertuo models: unlock the head with the lever and hold the single button for about 7 seconds until it blinks orange, then re-lock as prompted.
Step 3: Run the descaling solution through
Start the cycle (a single button press on most models). The machine pumps the solution through the internal system into your container — a couple of minutes, with the lights blinking throughout. When the tank empties, pour the collected solution back into the tank and run it once more so the acid gets a second pass at the limescale, then tip it away. This is the same principle you’d use to descale a kettle — the acidic solution simply dissolves the scale that hard water leaves behind.
Step 4: Rinse thoroughly with fresh water
Rinse the water tank well, refill it to the top with fresh water, and run the rinse cycle, emptying your container as it fills. Repeat — usually twice — until the tank is empty and the water runs clear. Don’t skip this: a proper rinse is what stops a chemical aftertaste in your next coffee.
Step 5: Exit descaling mode and finish up
Exit descaling mode (hold the same button combination for a few seconds, following the lights). Empty and rinse the drip tray and capsule container, wipe the machine with a damp cloth, and let it rest for around 10 minutes before brewing. Your DeLonghi Nespresso is ready to pour a proper cup again.
How to descale a DeLonghi Nespresso without descaling solution
You’ll find videos running white vinegar through Nespresso machines, and “how to descale a DeLonghi Nespresso with vinegar” is a common search — but Nespresso strongly advises against it. Vinegar and homemade acid mixes are hard to dilute precisely, and the wrong strength can damage internal parts, especially the rubber seals, which may then leak.
The safest option is always an official kit or a descaler made for coffee machines. If you’d still rather use a natural acid, citric acid for cleaning is gentler and less pungent than vinegar and is the active ingredient in many branded descalers — though using it on a Nespresso is at your own risk. The same caution applies to white vinegar: fine for a kettle, but not Nespresso’s recommendation for their machines. For the worktop around the machine, a little baking soda is a safe, machine-friendly helper.
Signs your DeLonghi Nespresso needs descaling
Between scheduled descales, watch for these tell-tale signs:
- The pour is slower than usual or sputters
- Your coffee comes out cooler than it should
- The machine is noisier, or the crema looks thin
- The descaling light or alert comes on
Staying ahead of these keeps small issues from becoming a clogged machine — the same little-and-often approach behind our favourite kitchen cleaning hacks. A descale every few months, filtered water in the tank, and leaving the head or lever open to dry after brewing will keep any DeLonghi Nespresso pouring beautifully for years.
FAQ
How do I descale my DeLonghi Nespresso machine?
Fill the tank with descaling solution and water, enter descaling mode (the button sequence depends on your model), run the solution through into a container, then rinse twice with fresh water. The whole process takes about 15 minutes.
How do I put my DeLonghi Nespresso machine in descaling mode?
On two-button Original models, hold the Espresso and Lungo buttons together for about 3 seconds. On Vertuo models, unlock the head and hold the single button for about 7 seconds. Lattissima models have their own sequence shown in the manual.
Can I descale my DeLonghi Nespresso with vinegar?
You can, but Nespresso strongly advises against it — vinegar is hard to dilute correctly and can damage internal parts and seals. An official descaling kit or coffee-machine descaler is the safer choice.
How often should I descale my DeLonghi Nespresso?
Every 3 months or 300 capsules, whichever comes first — more often in hard-water areas. Most machines show a descaling light when it’s due.
How do I descale a DeLonghi Nespresso Lattissima?
The Lattissima range has a dedicated descaling procedure and usually an alert light. Fill the tank with solution, follow the button sequence in your manual to enter descaling mode, run it through, then rinse thoroughly with fresh water.
Why is my DeLonghi Nespresso not making full cups?
A short, slow or cool pour is almost always limescale restricting the water flow. A full descale normally restores the pressure, temperature and cup size.
