Single source · Azerbaijan
Istisu
Istisu (Yukhary/Ashagy Istisu) thermal springs, Kalbajar district
Naturally carbonatedRises hot from the ground at Kalbajar, heavy with bicarbonate and sulfate, the fizz its own. Dense, briny, mineral through and through.
Mineral analysis
TDS5500mg/L total dissolved solids
Sparkling, full-bodied, sodium-savory with a soft, round finish.
Cation
Ca / MgNa
Anion
HCO₃SO₄ · Cl
Magnesium25 mg/L
smooth & easy
Silicanot published
Sodium1515 mg/L
a savory, higher-sodium pour
Verified · official analysis ↗
- briny and mineral-heavy
- fine persistent natural fizz
- warm sulfurous finish
Istisu is a sparkling water from Azerbaijan with 5500 mg/L total dissolved solids and carries 125 mg/L calcium, 25 mg/L magnesium and 1515 mg/L sodium (published analysis).
Among the ten saltiest waters in the catalog · closest in profile to Vichy Catalan.
Type · The Spa Baron
Find it in: Natural fizz · Full body · Savory
Related waters
Common questions
- What does Istisu taste like?
- Istisu is sparkling, full-bodied, silky and soft, closing on a soft, round finish. It belongs to the Spa Baron type in our sixteen-part typology, and the house tasting notes run briny and mineral-heavy, fine persistent natural fizz and warm sulfurous finish.
- Is Istisu good for you?
- Istisu is a regulated bottled water and safe to drink. The published analysis shows an intensely mineral water at 5500 mg/L dissolved solids. Sodium sits at 1515 mg/L, genuinely saline territory and part of how it tastes.
- What minerals are in Istisu?
- Istisu carries calcium 125, magnesium 25 and sodium 1515 mg/L over bicarbonate 3020, sulfate 835 and chloride 265 mg/L. Sodium leads the mineral profile with bicarbonate the main anion, at 5500 mg/L total dissolved solids.
- How much sodium is in Istisu?
- Istisu carries 1515 mg/L of sodium. That is genuinely saline water, far past the 20 mg/L low-sodium line.
- Is Istisu hard or soft water?
- By its calcium and magnesium, Istisu works out to 413 mg/L as calcium carbonate, which counts as very hard water. That is genuinely hard water, chalky on the tongue and quick to scale a kettle.
- Is Istisu still or sparkling?
- Istisu is a sparkling water. The carbonation is natural, carried out of the ground with the water rather than added at bottling.
- Where does Istisu come from?
- Istisu comes from Istisu (Yukhary/Ashagy Istisu) thermal springs, Kalbajar district in Azerbaijan, a single source.