Gerolsteiner
Gerolsteiner Sparkling is sourced from springs in the Volcanic Eifel region near the town of Gerolstein in Rhineland-Palatinate, Germany. The water rises from depths of up to 250 metres, where volcanic carbonic acid dissolves minerals from dolomite rock over a journey estimated at 50–100 years. The carbonation is naturally occurring, from volcanic CO₂ that meets the water underground. Gerolsteiner holds natural mineral water status. The company, Gerolsteiner Brunnen GmbH & Co. KG, is majority-owned by Bitburger Holding.
Mineral composition
| mg/L | |
|---|---|
| Calcium | 345 |
| Magnesium | 100 |
| Sodium | 115 |
| Sulfate | 35 |
| Chloride | 40 |
| Bicarbonate | 1800 |
Compositions can vary by season and source. Read our methodology.
Mineral character
Gerolsteiner is one of the most heavily mineralised waters in the TWD database. Bicarbonate is exceptionally high at 1,817 mg/L, calcium at 348 mg/L, magnesium at 108 mg/L, and sodium at 118 mg/L. Total hardness is 1,314 mg/L as CaCO₃, and alkalinity is 1,490 mg/L as CaCO₃. Sulphate (38.3 mg/L) and chloride (39.7 mg/L) are comparatively modest given the scale of everything else. The profile is dominated by the calcium-magnesium-bicarbonate axis to a degree that puts it in a different category from almost every other water in the database. For blending purposes, very small quantities go a long way.
Use-case suitability
- CoffeeNot used in any current coffee recipe. Hardness 1273 mg/L is above the 9–266 mg/L range of these targets.
- TeaNot used in any current tea recipe. Hardness 1273 mg/L is above the 37–59 mg/L range of these targets.
- BrewingAppears in blends for Edinburgh and Kölsch (Cologne).
- BakingAppears in blends for Neapolitan Pizza (Naples).
- AquariumNot used in any current aquarium recipe. Hardness 1273 mg/L is above the 35–212 mg/L range of these targets.
- HorticultureNot used in any current horticulture recipe. Hardness 1273 mg/L is above the 12–54 mg/L range of these targets.
Used in these recipes
Where to buy
UK
Sainsbury’s, Waitrose
£1.00-1.80 per litre
US
Whole Foods, specialty, Amazon
$2.00-3.00 per litre
DE
Edeka, Rewe, Aldi, Lidl, Kaufland, Netto
€0.40-0.50 per litre
Gerolsteiner is available in the UK at selected retailers (Waitrose, some Tesco stores) at approximately £1.50–2.50 for 750 mL (as of March 2026). It is widely available in the US (Walmart, Target, Whole Foods, Kroger) at $1.50–2.50. In Germany, where it is one of the best-selling mineral waters, it is available everywhere at substantially lower prices. Sold primarily as sparkling, in glass and PET bottles. A still variant exists but is less commonly stocked outside Germany.