Cleaning tablets, descaler and water filters get shelved together and sold together, and they are not interchangeable. A tablet dissolves coffee oil in the brew path. A descaler dissolves limescale in the water circuit. A filter treats the water before either problem starts.
Three products, three jobs
| Product | What it removes | Where it goes | When |
|---|---|---|---|
| Cleaning tablet | Coffee oil and grounds in the group head or brew group | Into the coffee path: on a blind disc in the portafilter, or in the pre-ground compartment | When the machine’s clean light comes on, or monthly |
| Descaler | Limescale in the boiler and water lines | Into the water tank, diluted, then flushed out | When the descale light comes on |
| Water filter | Nothing. It reduces what goes in | Into the water tank, on its own fitting | Every two to three months |
The filter is the only one of the three that is preventive, and the makers say so. Philips states that AquaClean reduces limescale build-up and so diminishes the need for descaling. That works in one direction only: the same manual says the machine has to be completely limescale-free before you start using the filter, so a filter fitted to a furred-up machine is money spent on nothing.
Which machine takes which product
| Machine | Cleaning product the maker names | Descaler the maker names | Water filter |
|---|---|---|---|
| Gaggia Classic E24 | GAGGIA cleaning tablets | GAGGIA descaling product | None in the manual |
| De’Longhi Dedica Style | Not stated by the maker | De’Longhi descaler | Water softener filter, sold separately |
| De’Longhi Magnifica Evo | Not stated by the maker | De’Longhi descaler | DLSC002 |
| De’Longhi Rivelia | Not stated by the maker | De’Longhi descaler | DLSC002 |
| Philips Series 3300 LatteGo | Philips coffee oil remover tablets | Philips descaler | AquaClean |
| Ninja Luxe Café | Cleaning tablet, used with the cleaning disc | Ninja descale powder | XSKFLTRINS6EUK |
| Sage Bambino Plus | Espresso cleaning tablets | Not stated by the maker | Claro Swiss Water Filter |
| Sage Barista Express | Cleaning disc and tablets | Sage Descaling powder | ClaroSwiss Water Filter |
| Sage Barista Pro | Cleaning tablets, with the cleaning disc | Descaling powder | ClaroSwiss Water Filter |
| Sage Barista Touch | Cleaning tablets | Descaling powder | ClaroSwiss Water Filter |
Three gaps in that table are real gaps rather than omissions. De’Longhi publishes no cleaning tablet for any of its three machines here. The Dedica Style manual has a heading for optional cleaning accessories recommended by the manufacturer and then sends you to the De’Longhi website rather than naming one. On the bean to cup machines the position is stronger: the Magnifica Evo manual says no chemical products are required for cleaning its superautomatic machines at all.
Manual espresso machines
There is no backflush cycle on a manual machine, so a tablet is optional rather than scheduled. Gaggia’s Classic E24 manual takes the hand route first, daily washing and a 10 minute soak in boiling water when the filters clog, and only then recommends its own GAGGIA cleaning tablets for a more thorough clean. The Dedica gets the same treatment with no tablet named.
Both machines still need descaler, and both makers restrict which one. Gaggia says its own product only, and rules out vinegar and other descaling agents by name.
Espresso machines with a built-in grinder
This is where the cleaning tablet earns its place. The machine pushes water backwards through the group head, and the tablet has to sit in a sealed basket for the pressure to build. On the Ninja Luxe Café the cleaning disc sits on top of the double basket with its handle up, one tablet goes in the centre of the disc, and the whole thing goes into the group head. The cycle runs about six minutes. Ninja supplies both the disc and the first tablets with the machine.
Sage’s machines in this class use the same disc and tablet pairing.
Bean to cup machines
The brew group comes out here, which is why two of the three makers say a tablet is unnecessary. Philips is the exception and the method is different again: the coffee oil remover tablet goes into the pre-ground coffee compartment, you brew half a cup, unplug the machine and leave the solution to act for at least 15 minutes before finishing the cycle and rinsing the brew group. Only Philips tablets, it says. De’Longhi’s brew groups are rinsed under running water with no detergent.
Do not substitute one for another
The warnings in these manuals are about the wrong product, not the wrong brand of the right product. De’Longhi says unsuitable descaler, or descaling done incorrectly, can cause faults the guarantee does not cover. Philips rules out any descaler based on sulfuric, hydrochloric, sulfamic or acetic acid, which takes vinegar off the list, and says failing to descale voids the warranty. Ninja is the only maker here that offers vinegar as an alternative, 474 ml topped up to the Descale line, and that is for descaling only.
A water filter is never a substitute for either. It buys time between descales and does nothing at all about coffee oil.
Sage machines
Sage sells its cleaning tablets, cleaning disc and descaling powder as a set, and how each one is used differs by model. That is set out in our guide to cleaning a Sage coffee machine and the Sage descaling guide.
