Water on your doorstep
Regions
Berlin drinks groundwater, Dresden reservoir water, Stuttgart Lake Constance. Every region has its own water, and the hardness decides about limescale, coffee and filters.
Water hardness in °dH
Guide values per city in German degrees (1 °dH = 17.8 mg/l CaCO3). Soft below 8.4, medium up to 14, hard above. The water supplier gives the hardness at your address.
Twelve profiles
Where the water comes from and how it tastes
Hard groundwater from nine waterworks
Berlin
Groundwater from 17 waterworks
Hamburg
Spring water from the Alpine foothills
Munich
Groundwater and Rhine bank filtrate
Cologne
Blended water from the Ried, Vogelsberg and Spessart
Frankfurt am Main
Lake Constance water and the Donauried
Stuttgart
Bank filtrate of the Rhine
Düsseldorf
Groundwater from the Mulde floodplain
Leipzig
Soft reservoir water from the Ore Mountains
Dresden
Heath water and Harz reservoir
Hanover
Franconian groundwater
Nuremberg
Groundwater from the surrounding area
Bremen
| City | Hardness | Range | Source | Nitrate |
|---|---|---|---|---|
| Dresden | 6.0 °dH soft | 4 to 10 °dH | Reservoir water | under 10 mg/l |
| Hanover | 10.0 °dH medium | 8 to 15 °dH | Groundwater | under 10 mg/l |
| Stuttgart | 11.0 °dH medium | 8 to 14 °dH | Lake water | under 10 mg/l |
| Bremen | 12.5 °dH medium | 11 to 14 °dH | Groundwater | under 10 mg/l |
| Hamburg | 13.0 °dH medium | 10 to 16 °dH | Groundwater | under 10 mg/l |
| Frankfurt am Main | 15.0 °dH hard | 12 to 18 °dH | Groundwater | 10 to 20 mg/l |
| Nuremberg | 15.0 °dH hard | 12 to 18 °dH | Groundwater | 10 to 20 mg/l |
| Munich | 15.5 °dH hard | 14 to 17 °dH | Spring water | around 6 mg/l |
| Düsseldorf | 15.5 °dH hard | 14 to 17 °dH | Bank filtrate | under 15 mg/l |
| Cologne | 16.5 °dH hard | 14 to 19 °dH | Groundwater | 10 to 25 mg/l |
| Leipzig | 16.5 °dH hard | 14 to 19 °dH | Groundwater | under 10 mg/l |
| Berlin | 18.0 °dH hard | 14 to 22 °dH | Groundwater | under 5 mg/l |
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