Eptinger
Eptinger is sourced from a spring at the Birchhöchi, at approximately 800 metres altitude in forested land above the village of Eptingen in Canton Basel-Landschaft, Switzerland, roughly 2 km outside the village. The mineral-rich waters attracted spa visitors from the early 18th century. In 1899 the spa and spring were purchased by Edmund Buchenhorner and Ernst Singer, who established a formal bottling operation; automated equipment followed in 1905. Mineralquelle Eptingen AG has remained an independent, family-owned business since then and is now in its fourth generation of ownership, operating two bottling plants in Eptingen and Lostorf. Eptinger holds natural mineral water status.
Mineral composition
| mg/L | |
|---|---|
| Calcium | 475 |
| Magnesium | 107 |
| Sodium | 3 |
| Sulfate | 1352 |
| Chloride | 4 |
| Bicarbonate | 280 |
Compositions can vary by season and source. Read our methodology.
Mineral character
Eptinger is one of the most heavily mineralised sparkling waters in the TWD database. Calcium is 475 mg/L (the highest of any Swiss water in the database); sulphate is 1,352 mg/L; magnesium is 107 mg/L; and bicarbonate is 280 mg/L. Sodium is 3.2 mg/L and chloride is 4.4 mg/L, both very low. Total hardness is 1,627 mg/L as CaCO₃; alkalinity is 230 mg/L as CaCO₃. TDS is approximately 2,222 mg/L. Eptinger is calcium-sulphate dominant, similar in character to Courmayeur, but with substantially higher magnesium (107 mg/L versus 68 mg/L) and a somewhat higher bicarbonate. For blending, it provides magnesium alongside calcium in a way that Courmayeur does not.
Use-case suitability
- CoffeeNot used in any current coffee recipe. Hardness 1627 mg/L is above the 9–266 mg/L range of these targets.
- TeaNot used in any current tea recipe. Hardness 1627 mg/L is above the 37–59 mg/L range of these targets.
- BrewingNot used in any current brewing recipe. Hardness 1627 mg/L is above the 26–922 mg/L range of these targets.
- BakingNot used in any current baking recipe. Hardness 1627 mg/L is above the 46–390 mg/L range of these targets.
- AquariumNot used in any current aquarium recipe. Hardness 1627 mg/L is above the 35–212 mg/L range of these targets.
- HorticultureNot used in any current horticulture recipe. Hardness 1627 mg/L is above the 12–54 mg/L range of these targets.
Where to buy
CH
Coop CH, Migros, Denner
CHF 0.65-0.85 per litre
Eptinger is available in Switzerland at Coop, Migros, and Denner, typically CHF 0.65–0.85 (as of March 2026). Availability outside Switzerland is very limited. Sold as sparkling in glass and PET formats.