Central Europe · WC-081

Rogaška Donat Mg

Rogaška Slatina, Savinja, Slovenia

About this water

Rogaška Donat Mg is a naturally sparkling mineral water from Rogaška Slatina, Savinja, Slovenia. The brand dates to 1908. It is produced by Droga Kolinska / Atlantic Grupa, part of Atlantic Grupa. Its bubbles come up with the water from the source. You'll find it in glass and PET. It is hard to find in the US.

Each liter carries 13,197 mg of dissolved minerals, which puts it in the high mineral class. Its largest ion is bicarbonate at 7,800 mg/L, followed by sulfate (2,100) and sodium (1,700). Hardness works out to 5,067 mg/L as calcium carbonate. The label gives a pH of 6.8.

Bicarbonate at this level gives a smooth, rounded weight. Sulfate at this level reads as a dry, slightly bitter finish. There is enough sodium to taste a savory, salty edge. Calcium gives it a firm, chalky backbone. Magnesium this high can add a faint bitterness.

Source
Donat spring
Source type
Mineral (medicinal)
Style
Sparkling (natural)
Established
1908
Producer
Droga Kolinska / Atlantic Grupa (Atlantic Grupa)
Packaging
Glass, PET
In the US
Limited US availability

Expected from the chemistry

Intensely mineral, heavy texture; salty-savory; smooth, chalky bicarbonate weight; dry, slightly bitter finish; faint magnesium bitterness.

Cellar note

Extreme magnesium (>1,000 mg/L).

On the map

46.24° N, 15.64° E

See it on the globe

Typical analysis

Verified
13,197mg/L total dissolved solids · High (>1,500)
mg/L · bar length on a log scale
CalciumCa380
MagnesiumMg1,000
SodiumNa1,700
BicarbonateHCO₃7,800
SulfateSO₄2,100
ChlorideCl75
pH6.8
Hardness5,067
Ca:Mg0.4
Source: brand analysis, checked 2026-10-21.Hardness in mg/L as CaCO₃. Figures vary by batch and bottle format.

Newsletter

New waters, as we add them.

An occasional email when the library grows. No spam.

We only use your email for this newsletter. Unsubscribe any time.