Descaling removes mineral buildup from your espresso machine’s boiler and internal lines; cleaning removes coffee oil and grounds residue from the group head and portafilter. They’re not the same task, and doing one doesn’t substitute for the other — you need both, on different schedules.
This guide covers how often to actually descale, whether vinegar is safe to use, and the real step-by-step procedures for Breville and De’Longhi machines — plus a general method for budget machines without a built-in descale mode.
Descaling vs. Cleaning: What’s the Difference?
Cleaning gets the coffee out. Descaling gets the minerals out. Cleaning deals with coffee oils and grounds residue that build up in the group head, portafilter, basket, and steam wand — this is a daily-to-weekly task. Descaling deals with limescale, the mineral deposits (mostly calcium and magnesium) that tap water leaves behind inside the boiler and internal tubing over weeks and months. Left unaddressed, scale buildup restricts water flow, throws off temperature consistency, and can eventually damage the heating element — regular descaling is one of the biggest factors in how long an espresso machine actually lasts.
How Often Should You Descale?
There’s no single universal number — it depends on your water hardness and how often you use the machine — but every 1 to 3 months is the commonly cited range for average home use, more often in hard-water areas. Two manufacturer-specific data points worth knowing: De’Longhi’s manual for the Stilosa states descaling is needed about every 200 coffees, and Breville’s higher-end machines track usage internally and light up a descale indicator rather than relying on a fixed calendar interval.
Signs Your Machine Needs Descaling
- Slower shot flow or longer extraction times
- Noticeably less crema
- Gurgling or sputtering sounds during brewing
- Inconsistent water temperature
- A lit or flashing descale indicator light, on machines that have one
- Note: if your machine is actively leaking or shots are dripping unusually slowly, those are usually separate issues from scale buildup, worth ruling out on their own
Is Vinegar Safe, or Do You Need a Commercial Descaler?
This gets debated a lot, and the honest answer is more nuanced than either side usually presents it. Neither Breville nor De’Longhi states outright in their consumer materials that vinegar destroys seals or gaskets — that specific claim is common on enthusiast forums and repair sites, not something either manufacturer states directly. What both brands DO say is more about effectiveness: De’Longhi’s own materials state that DIY descalers — including vinegar, lemon juice, and baking powder — can leave behind residue and a lingering aftertaste, and steers buyers toward their own EcoDecalk descaler for more complete mineral removal. Breville’s official guidance mentions a diluted vinegar ratio as an option but recommends a store-bought descaling solution for a proper deep clean.
Practical takeaway: occasional diluted vinegar (1 part vinegar to 1 part water) isn’t explicitly banned by either brand, but it’s not their recommendation either. If you’re using a manufacturer’s own machine, using their branded descaler removes any guesswork — and multiple thorough rinse cycles matter more than which solution you pick. If you also run a drip machine, the same vinegar-vs-citric-acid debate applies there — see our how to clean a coffee maker guide.
How to Descale a Breville Espresso Machine
Breville’s Bambino, Barista Express, and Barista Touch machines (all featured in our best espresso machine guide and our best espresso machines with a grinder roundup) have a built-in descale mode. Budget picks like the ones in our best budget espresso machine guide and heavier-use machines from our best office coffee machines picks don’t all have this feature, which is covered further down.
- To enter descale mode on the Barista Express: press and hold the 2-CUP button, then while still holding it, press and hold POWER until the power light starts flashing.
- A steady descale light means a full descale is needed; a flashing light usually means only a cleaning cycle is needed — check your specific model’s manual, since button layouts vary between the Bambino, Barista Express, and Barista Touch.
- Follow the on-machine prompts, running the descale solution through as directed, then complete a full water-only rinse cycle before making coffee again.
Breville’s official tutorials (linked in the video below) walk through the exact process on camera, which is worth watching once if you’ve never done it on your specific model. The touchscreen Barista Touch handles this differently — go to Settings → Descale Cycle and follow the on-screen prompts. Its manual is also the most specific about frequency: it recommends replacing the water filter every 3 months (or 40 liters, at water hardness level 4) to reduce how often a full descale is needed, extending to 60 liters if your water hardness setting is lower.
How to Descale a De’Longhi Espresso Machine
Higher-end De’Longhi machines (La Specialista, Magnifica, and similar) have a descale indicator light. If the light stays on after you’ve run a descale cycle, that means the cycle wasn’t completed correctly — the fix is to repeat the process using only water for the final two rinse cycles, filled to the MAX line.
The Stilosa — featured in our best budget espresso machine guide — is fully manual and has no indicator light. Its manual specifies descaling roughly every 200 coffees, using this process:
- Fill the tank with diluted descaling solution (De’Longhi’s own EcoDecalk, mixed per the bottle’s instructions) up to the MAX line.
- Wait for the ready light.
- Dispense about a quarter of the tank through the group head.
- Periodically turn the steam dial to run some solution through the steam wand too.
- Repeat the dispense-and-steam cycle three more times (four total) until the tank is empty.
- Refill with clean water and run it through completely — this is rinse cycle one.
- Repeat with a second full tank of clean water. The machine is then ready for normal use.
Descaling a Machine Without a Built-In Descale Mode
Budget machines like the Gevi and CASABREWS models don’t have smart descale alerts, so you’re doing this on a calendar-based schedule (every 1-3 months) rather than waiting for a light. The general process:
- Empty and rinse the water tank; remove any water filter cartridge first.
- Mix your descaling solution per the product’s instructions.
- Run the solution through the group head in short pulses rather than one continuous pour, letting it sit briefly in the lines between pulses.
- Run the remaining solution through the steam wand in short bursts.
- Run at least one full tank of clean water through both the group head and wand to rinse — two rinse cycles is safer than one.
- Pull and discard one “throwaway” shot before making coffee to drink.
Watch: How to Descale Your Espresso Machine
Frequently Asked Questions About Descaling an Espresso Machine
Neither Breville nor De’Longhi explicitly bans diluted vinegar, but neither recommends it as the primary method either — their concern is more about incomplete mineral removal and residual taste than seal damage. A manufacturer-approved descaling solution removes the guesswork.
Every 1 to 3 months for average use is the common range, adjusted for water hardness. De’Longhi’s Stilosa manual specifies roughly every 200 coffees; Breville’s higher-end machines track usage internally and light up a descale indicator instead.
Mineral buildup progressively restricts water flow and disrupts temperature consistency, and over time can damage the heating element — one of the biggest factors in how long an espresso machine actually lasts.
Yes, in both directions — unremoved scale causes temperature and extraction problems that hurt flavor, while an incompletely rinsed descaling solution can leave its own residual taste behind.
Yes, directly — harder water deposits scale faster, so hard-water households should descale more frequently or consider a water filter to reduce mineral buildup between cycles.
On a Breville, the descale light turns off. On a De’Longhi with an indicator, the light clears — if it doesn’t, repeat the cycle with a water-only rinse. On any machine, flow rate and crema returning to normal is the practical sign.
It’s not recommended by De’Longhi specifically — their guidance groups lemon juice with vinegar and baking powder as DIY options that can leave residue and aftertaste compared to a purpose-made descaler.
Explore more in our Coffee Gear hub.
Hi, I’m Megan! I love coffee – especially cappuccino – and spending time with my kids. When I’m not busy being a mom, I enjoy reading magazines (or just about anything that interests me) and swimming. In fact, I used to be a swimmer in college!
Leave a Reply