The water in Düsseldorf
- Hardness
- 250–268 ppm
- Band
- Medium – Hard
- Source
- Stadtwerke Düsseldorf
Tap water in Düsseldorf measures 250–268 ppm (14–15 °dH), which ranges anywhere from medium to hard, according to figures published by Stadtwerke Düsseldorf.
Built for this water
Ligeia
Mineral-rich water brings weight but mutes the top of the cup — and where alkalinity is high as well, it buffers the acidity and the cup arrives flat. Ligeia answers with higher-grown arabica and a shorter roast — more aroma, more lift, enough brightness to still read through the mineral.
See the blend →Your neighbourhood matters more than your city
The water in Düsseldorf runs from 250 ppm to 268 ppm — a spread of 18 ppm that crosses Medium → Hard. That is not imprecision: a city this size is served by several waterworks, and the average describes no tap in particular. Check which works supplies your street before you trust a city figure, ours included.
Against the SCA target zone
At its softest, Düsseldorf sits 2.3× above the top of the zone the SCA Water Chart marks as its target (2.8–6.2 °dH). Read that as a distance, not a verdict: the chart maps taste outcomes, it does not grade cities.
The same number, three ways
- °dH
- 14–15 °dH
- °f
- 25–26.8 °f
- ppm CaCO₃
- 250–268 ppm
German utilities publish °dH, French and Italian ones °f, British and Irish ones ppm CaCO₃. Same water, three conventions — worth knowing if you compare your city with one abroad.
Of the 47 cities we publish, Düsseldorf ranks 17th by hardness.
The other cities we publish in Germany
Cities with the closest water to this one
Closest match abroad
The water most like Düsseldorf's, outside Germany, is Warsaw.
Warsaw — 178–343 ppm →Where this number comes from
Published by Stadtwerke Düsseldorf. We do not estimate: a city without a figure we could read on the utility's own publication is not on this site at all.
Stadtwerke Düsseldorf →