A practical guide to JURA CLEARYL filters, water hardness, and knowing when to replace them.
JURA's standard guidance is around 50 liters (13.2 US gallons) of water, but the actual filter life depends on the hardness of your water and the particular filter you're using.
For example, the current JURA CLEARYL Smart Plus filter has a rated capacity of between 40 and 65 liters, depending on water hardness.
Your machine monitors filter usage and, on compatible models, tells you when it's time for a new one. You don't need to count the cups of coffee you've made.
There are, however, a few things worth knowing.
Why Water Hardness Matters
The harder your water, the more work your filter has to do.
This is why JURA supplies a water-hardness test strip with many of its machines. When setting up your machine, test the water you'll actually be using and enter the correct hardness setting if your model requires it.
For the current CLEARYL Smart Plus filter (part 24234), JURA specifies the following approximate capacities:
| Water Hardness | Filter Capacity |
|---|---|
| 1–5 °dH | Up to 65 liters |
| 6–10 °dH | Up to 60 liters |
| 11–15 °dH | Up to 55 liters |
| 16–20 °dH | Up to 50 liters |
| 21–25 °dH | Up to 45 liters |
| 26–30 °dH | Up to 40 liters |
Our advice: Test your water rather than guessing. If you've moved house or changed your household water-treatment system, it's worth testing it again.
If you need a replacement water-hardness test strip, call us at 940-455-2205. We're happy to help.
Do I Still Need a JURA Filter If My House Has a Water Softener?
We recommend using the correct JURA CLEARYL filter even when your home has a water-softening system.
A household water softener and a JURA filter do different jobs.
A softener primarily addresses water hardness. It doesn't necessarily remove substances such as chlorine that can affect the smell and taste of your coffee.
Water hardness can also fluctuate, depending on how the household system is operating.
The CLEARYL filter is designed to protect the machine from limescale while helping maintain water quality for coffee preparation.
And since coffee is mostly water, what you put into the machine really does matter.
Using reverse-osmosis or distilled water? Check the guidance for your particular JURA model. These water types can have very low mineral content, which may affect coffee flavor, but suitability varies by machine and water treatment.
Why Is My JURA Asking Me to Descale When I Have a Filter Installed?
This is something we've encountered with customers over the years.
On older JURA machines, simply putting a CLEARYL filter into the water tank doesn't necessarily tell the machine that you're using one.
The filter needs to be activated in the machine's settings.
Many newer JURA machines have the Intelligent Water System (I.W.S.), which uses RFID technology to recognize a compatible CLEARYL Smart Plus filter automatically.
If a compatible filter isn't recognized, isn't activated correctly, or isn't replaced when required, the machine may eventually switch to a descaling routine.
If your JURA asks you to descale, don't ignore the message. Check that the correct filter is installed and follow the instructions for your particular model.
When the correct CLEARYL filter is activated and replaced as required, JURA states that routine descaling is not necessary.
Which JURA Water Filter Do I Need?
Not every JURA coffee machine uses the same filter.
Most current JURA home coffee machines use the CLEARYL Smart Plus Water Filter, while some older machines require CLEARYL Blue Plus or CLEARYL White. Professional JURA machines may require a larger PRO filter.
It's important to choose the filter designed for your machine rather than assuming all CLEARYL cartridges are interchangeable.
The Design & Grace JURA filter collection includes a model-based filter finder, so you can identify the correct cartridge before ordering.
You can find the collection link and a photograph of the CLEARYL Smart Plus filter at the end of this guide.
JURA Water Filter FAQs
Should I change my JURA filter even if I haven't made much coffee?
Yes. JURA recommends replacing CLEARYL filters after two months even if you haven't reached their rated water capacity. On older machines that don't track elapsed time, it's worth noting when you installed the filter.
Can I keep using the filter after the machine tells me to replace it?
We wouldn't recommend it. Once the filter has reached its recommended service life, you can no longer rely on it to provide the intended filtration and limescale protection.
Does using a CLEARYL filter mean I never need to descale?
When a compatible CLEARYL filter is correctly activated and replaced on schedule, JURA states that routine descaling is unnecessary. If your machine does request descaling, follow its maintenance instructions.
A Final Word from Tony
We've been selling JURA coffee machines at Design & Grace since 2004, and regular maintenance is something we have always emphasized to our customers.
A good water filter helps protect the internal workings of your machine and keeps water quality consistent.
I've always thought of it rather like keeping your house clean. A little regular attention is much better than leaving everything until you need a major clean-up.
Changing a filter is a small job. Dealing with limescale inside an expensive coffee machine is something you'd rather avoid.
Need a Replacement Filter?
JURA CLEARYL Smart Plus Water Filter
CLEARYL Smart Plus (part 24234) is the filter used by many current JURA home coffee machines. Compatible machines recognize it through JURA's Intelligent Water System.
Earlier home machines and professional models may require a different cartridge. Check your exact machine model before purchasing.
Find Your JURA Water FilterNeed help choosing? Design & Grace has been an Authorized JURA Dealer since 2004. If you're uncertain which filter your machine needs, call our Texas team at 940-455-2205.
