
A water filter for your Quooker: filtered and boiling water
A Quooker is a great addition to any modern kitchen: boiling, cold, and chilled water directly from the tap. What many people don't know: a Quooker is not a water filter. For true purification of PFAS, microplastics, and heavy metals, you need something extra. In this overview, we show you how to cleverly combine a water filter and your Quooker into one complete system — and why a water filter for your Quooker is the ideal addition for anyone who wants to get everything out of their tap.
Does a Quooker filter your water?
Good to know: a Quooker partially filters your water, and only in specific aspects.
The standard Quooker is not designed for purification, but for temperature and convenience. The CUBE extension does contain a carbon filter that improves taste and partially removes chlorine, but:
- It does not filter PFAS
- It does not filter microplastics
- It does not filter heavy metals like lead or copper
- It does not filter nitrates
For those who only want better-tasting water, this might be sufficient. Anyone who also wants to tackle PFAS, microplastics and heavy metals therefore complements the Quooker with a water filter: together they deliver what neither can on its own.



Why a water filter next to it?
A water filter picks up what a Quooker does not. PureFilter Mineral+ is a compact under-sink system that filters the water before it reaches the Quooker. All 40 tested chemicals reduced, from 75% to 99.97%. 83% to 85% less PFAS, including PFOA and PFOS. Measured by an independent lab. Lead, mercury, arsenic and cadmium brought below the detection limit. No chlorine taste, no chlorine smell: 99.97% less chlorine. 99% less nitrate and 94% less fluoride.
Swedish Mineral Rock™ adds calcium, magnesium and potassium in the final filter step and gives your water a soft, fresh taste.
The result: your Quooker keeps working exactly as always, but the water that comes out is purer and tastes better.
Still not sure which solution fits? See the overview of the best home water filters, or compare PureFilter with a Brita jug or Berkey.

How to combine a water filter with your Quooker
Easy to connect
PureFilter Mineral+ connects to the cold water supply, before the Quooker system. The water first goes through the filter and then to your Quooker. Installing a filter for your Quooker only takes 5 to 10 minutes with a wrench — no plumber needed. The filter is compact (10 × 2.5 inches) and fits in almost any kitchen cabinet, even next to a Quooker tank.
Boiling, cold and filtered from a single tap
Because the filter is installed before the Quooker, all Quooker functions are retained. Boiling water for tea and cooking, cold water for drinking, all filtered. No extra appliance on the counter, no separate filter jug. One tap, all functions.
Cleaner and tastier water
The difference is most noticeable in taste. PureFilter removes PFAS, microplastics, and heavy metals, and adds calcium, magnesium, and potassium via Swedish Mineral Rock™. The result: water that tastes softer and richer than what your Quooker normally delivers, and that provides certainty about what you drink every day.
What does it cost besides your Quooker?
| Component | Price |
|---|---|
| PureFilter Mineral+ (once-off) | €149.00 |
| Replacement filter (1-3 people) | €65.00 |
| Replacement filter duo (4+ people) | €115.00 |
Does a water filter help against limescale in your Quooker?
Yes. In large parts of the Netherlands, limescale is the main cause of buildup in your Quooker reservoir and on your tap. A water filter for your Quooker that sits before the appliance on the cold water supply reduces the particles and contaminants that the water sends into your Quooker. All 40 tested chemicals reduced, from 75% to 99.97%. 83% to 85% less PFAS, including PFOA and PFOS. Measured by an independent lab. Lead, mercury, arsenic and cadmium brought below the detection limit. Swedish Mineral Rock™ adds calcium, magnesium and potassium in the final filter step and gives your water a soft, fresh taste. Your Quooker keeps doing what it does; the water going through it is simply cleaner.
Want to know how to tackle existing limescale? Read our explanation of a water softener versus a water filter.

Frequently Asked Questions
Does a Quooker filter PFAS from tap water?
No. A Quooker – even with the CUBE extension – is not designed to filter PFAS. For effective removal of PFAS you need a water filter with multi-layer activated carbon that has been independently tested on PFAS, such as the PureFilter Mineral+. Read more about which water filter removes PFAS from tap water.
Does a water filter work with a Quooker?
Yes. The water filter is connected to the cold water supply, before the Quooker. The water first goes through the filter and then to your tap. You retain all Quooker functions and get full filtration in addition.
Will I lose my Quooker warranty if I connect a water filter?
No. The filter is placed before the Quooker system and does not affect its operation or pressure. Many installers even recommend a filter to prevent limescale buildup in the reservoir.
Will PureFilter fit under my sink next to the Quooker tank?
In almost all cases, yes. PureFilter Mineral+ is compact: 10 × 2.5 inches and weighs 1 kg. Standard Dutch kitchens have enough space for both a Quooker reservoir and an under-sink filter.
Do I still need a CUBE if I have PureFilter?
Not for filtration. PureFilter does everything the CUBE does in terms of taste and chlorine, and more: 83% to 85% less PFAS, including PFOA and PFOS. Measured by an independent lab. Lead, mercury, arsenic and cadmium brought below the detection limit, and Swedish Mineral Rock™ in the final filter step. The CUBE remains relevant if you specifically want sparkling water – that is a separate function.
Can the Quooker installer also install PureFilter?
Yes. Many Quooker installers are happy to take care of this for a small additional charge when installing your Quooker. Prefer to do it yourself? Installing a filter for your Quooker takes 5 to 10 minutes with a wrench—no plumber needed.
Does PureFilter work with all Quooker models?
Yes. PureFilter Mineral+ works with all Quooker models — COMBI, Fusion, Flex, and Nordic. All Quooker models use standard water main connections, so the water filter connects seamlessly to the cold water supply before the Quooker reservoir.
What are the disadvantages of a Quooker, and does a water filter solve them?
A Quooker is made for convenience and temperature, not for purification. The biggest downside is that it does not remove PFAS, microplastics and heavy metals from your tap water — even the CUBE extension only does this partially. A water filter before your Quooker complements this: you keep boiling, cold and sparkling water, and get filtration on top. Swedish Mineral Rock™ adds calcium, magnesium and potassium in the final filter step and gives your water a soft, fresh taste.