Source guide
Mineral Water Sources
Mineral water comes from underground sources where water absorbs minerals from rock and soil. The source is one of the most important factors in how a water tastes and what it contains.
Why the source matters
As water travels underground it picks up calcium, magnesium, sodium, bicarbonate, potassium, chloride, sulfate and silica. The mineral mix shapes taste, mouthfeel, pH, sodium, hardness, TDS and still/sparkling character.
Natural mineral water
Natural mineral water is bottled from a protected underground source and carries naturally occurring minerals tied to that source. Compare the mineral analysis on the label.
Spring sources vs mineral sources
Spring water comes from a spring source and may carry some minerals. Mineral water is defined by its mineral composition. Some spring waters are mineral-rich but are not classified as mineral water.
Still and sparkling sources
Some mineral waters are naturally sparkling because of underground CO₂; others are still, or carbonated after bottling. Naturally sparkling waters often taste sharper and more complex.
How to compare sources
- Source name and location
- Mineral analysis
- pH and TDS
- Sodium, magnesium, calcium, bicarbonate
- Still or sparkling format
Instant PDF. Every major brand ranked by pH, minerals, source and taste.
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