Icelandic Glacial is a still water from Iceland. Extremely low mineralization; naturally alkaline due to lava-rock filtration rather than high bicarbonate content.
| Ion | mg/L |
|---|---|
| Calcium (Ca²⁺) | 5.5 |
| Magnesium (Mg²⁺) | 2.2 |
| Sodium (Na⁺) | 11 |
| Chloride (Cl⁻) | 12 |
| Sulfate (SO₄²⁻) | 3.3 |
| Bicarbonate (HCO₃⁻) | 35.4 |
| At a glance | |
|---|---|
| Total of these six minerals | 69.4 mg/L |
| Total hardness (as CaCO₃) | 22.8 mg/L |
| Alkalinity (as CaCO₃) | 29 mg/L |
| Sulfate-to-chloride ratio | 0.3:1 |
Mineral salts to dissolve in reverse-osmosis or distilled water, calculated by the BrewWaterSolver solver with the most common homebrew salts.
| Salt | 5 gal (18.9 L) | 20 L |
|---|---|---|
| Calcium chloride (CaCl₂) | 0.30 g | 0.31 g |
| Epsom salt (MgSO₄) | 0.12 g | 0.13 g |
| Baking soda (NaHCO₃) | 0.67 g | 0.71 g |
Closest match with these salts; it can't reach HCO3 28.8 mg/L vs 35.4 exactly.
Olfus Spring, Iceland. Updated from the brand's NSF source-water report (Feb 2026); HCO3 from alkalinity 29 mg/L as CaCO3 (x1.22).