Best descaler for De'Longhi machines
For De'Longhi machines (Magnifica, Dinamica, Eletta, La Specialista), the recommended descaler is De'Longhi EcoDecalk (DLSC500 / DLSC200). Below are cheaper universal options that work too, how often to descale, and a quick step-by-step. De'Longhi bean-to-cup machines prompt a descale warning — use EcoDecalk or a coffee-machine-safe descaler; never use a household kettle descaler in a pump espresso machine.
How to descale a De'Longhi machine
1. Empty and prepare
Empty the drip tray and water tank, and remove any water filter.
2. Mix the descaler
Add the descaler to fresh water in the tank at the stated dilution.
3. Run the descale cycle
Start your De'Longhi machine's descaling programme and let it run fully.
4. Rinse thoroughly
Run two or three tanks of clean water through to flush all descaler residue before your next drink.
Cheaper universal alternatives
Food-safe descalers that also suit De'Longhi machines: