A shortlist for comparison
Our suggestion is to compare two waters with a familiar tea. The directory below gives you bottles and their published profiles to start from. It is not a ranking or a record of teas we have tasted with every water.
Countries identify the waters’ origins; availability varies by shop and export market. Check the exact variant and source on your bottle. Each profile carries its own source links and date checked. If your label differs, use ‘Report an issue’ to send us the correction.
Read the numbers together
Mineral values below are in mg/L. The total preserves the source’s measurement basis: TDS, total mineralisation, or dry residue. The methods differ, so these are related rather than interchangeable measurements.[1] A dash means a value has not been verified; it never means zero.
‘Source checked’ records when we reviewed the cited material. ‘Record updated’ records an edit to this directory. Neither date claims that the water was sampled or laboratory-tested on that day. Sample dates and conversions are noted where relevant.
Our starting suggestion: choose a low-bicarbonate water, then compare it with a more mineralised profile. Treat that as a tasting experiment. The numbers describe the water; your cup determines whether you enjoy the combination.
THE WATER DIRECTORY
Find the bottle. Check the source.
Published mineral profiles, kept with the exact water variant and the date we checked its sources. These are source records, not our tasting results. Unknown values stay open for correction.
All values are in mg/L. Total dissolved solids, total mineralisation and dry residue are preserved as reported. A dash means a value has not been verified; it does not mean zero.
France
Mont Roucous
Natural mineral water · still
Some mineral values not verified
Published profile and source notes [3]
Scroll the table to see all minerals →
| Total minerals & measurement | Calcium | Magnesium | Bicarbonate |
|---|---|---|---|
| 33 · dry residue 180°C | 2.6 | 0.49 | — |
Figures in mg/L. Bicarbonate was not verified in the current producer analysis; older figures from other websites have not been substituted. [3]
Volvic
Nature / Naturelle · still, FR/DE analysis
Published mineral profile verified
Published profile and source notes [4][5][6][7]
Scroll the table to see all minerals →
| Total minerals & measurement | Calcium | Magnesium | Bicarbonate |
|---|---|---|---|
| 130 · residue 180°C | 13 | 9 | 80 |
Figures in mg/L use matching French and German brand analyses. The UK page gives a different profile: calcium 12, magnesium 8 and bicarbonate 74 mg/L. Identify the source and analysis on your bottle; a brand name alone is not enough. [4][5][6][7]
Georgia
Bakhmaro
Still spring water
Some mineral values not verified
Published profile and source notes [8][9][10]
Scroll the table to see all minerals →
| Total minerals & measurement | Calcium | Magnesium | Bicarbonate |
|---|---|---|---|
| 70–150 · total mineralisation | — | — | — |
Total mineralisation converted from the producer’s 0.07–0.15 g/L. The producer lists calcium and magnesium ranges without units and does not quantify bicarbonate; those fields await a readable bottle label. [8][9][10]
Iceland
Icelandic Glacial
Still water · 2026 source sample
Published mineral profile verified
Published profile and source notes [11][12][13]
Scroll the table to see all minerals →
| Total minerals & measurement | Calcium | Magnesium | Bicarbonate |
|---|---|---|---|
| 72 · measured TDS | 5.5 | 2.2 | ≈34.4 · converted from report units |
Figures in mg/L from the February 2026 NSF report for a January 2026 source sample. Bicarbonate is reported as 28.21 mg/L as CaCO₃ and converted to about 34.4 mg/L HCO₃ using 61/50. Total alkalinity is 29 mg/L as CaCO₃. The consumer FAQ separately states typical TDS of 62 ppm. This sample is not a guarantee for every bottle. [11][12][13]
Italy
Acqua Panna
Still · international 1 L glass profile
Published mineral profile verified
Published profile and source notes [14]
Scroll the table to see all minerals →
| Total minerals & measurement | Calcium | Magnesium | Bicarbonate |
|---|---|---|---|
| 142 · reported at 180°C; 195 · total mineralisation | 32.2 | 6.7 | 107 |
Figures in mg/L from the international 1-litre glass product page. The reported value at 180°C and total mineralisation are preserved separately. [14]
Lauretana
Natural mineral water · still
Published mineral profile verified
Published profile and source notes [15]
Scroll the table to see all minerals →
| Total minerals & measurement | Calcium | Magnesium | Bicarbonate |
|---|---|---|---|
| 14.4 · dry residue 180°C | 1.70 | 0.44 | 5.20 |
Figures in mg/L from the German source-analysis page. Choose the still variant. [15]
Norway
VOSS Still
Still water · Norwegian source
Some mineral values not verified
Published profile and source notes [16]
Scroll the table to see all minerals →
| Total minerals & measurement | Calcium | Magnesium | Bicarbonate |
|---|---|---|---|
| 38 · TDS | 3.4 | 0.69 | — |
Figures in mg/L apply only to the Norwegian still-water source. US East, US West and sparkling products have separate profiles. Bicarbonate was not listed in the current online table. [16]
Portugal
Caramulo
Spring water · still
Published mineral profile verified
Published profile and source notes [17]
Scroll the table to see all minerals →
| Total minerals & measurement | Calcium | Magnesium | Bicarbonate |
|---|---|---|---|
| 79 · total mineralisation | 2.7 | 1.8 | 24.6 |
Figures in mg/L follow the brand website checked on the recorded date. An older technical sheet based on a 2013 analysis differs; check your bottle's label. [17]
Luso
Natural mineral water · still
Published mineral profile verified
Published profile and source notes [18]
Scroll the table to see all minerals →
| Total minerals & measurement | Calcium | Magnesium | Bicarbonate |
|---|---|---|---|
| 43 ± 4 · dry residue 180°C; 49 ± 5 · total mineralisation | 0.74 ± 0.11 | 1.7 ± 0.2 | 12 ± 3 |
Producer figures with analytical tolerances, in mg/L. Dry residue and total mineralisation are different measurements; both are preserved. Check the label for the bottle you use. [18]
Thailand
Singha
Drinking Water · still, PET
Numeric mineral profile not verified
Published profile and source notes [19]
Scroll the table to see all minerals →
| Total minerals & measurement | Calcium | Magnesium | Bicarbonate |
|---|---|---|---|
| — | — | — | — |
Product identity verified, but no current producer mineral analysis was verified. This is Singha Drinking Water, not Singha Soda Water or Purra mineral water. Unknown values do not mean mineral-free water. [19]
United Kingdom
Highland Spring
Still spring water · Scottish source
Published mineral profile verified
Published profile and source notes [20]
Scroll the table to see all minerals →
| Total minerals & measurement | Calcium | Magnesium | Bicarbonate |
|---|---|---|---|
| 170 · dry residue 180°C | 40.5 | 10.1 | 150 |
Producer's average analysis at source, in mg/L; not a measurement of every bottle. [20]
Find the water you prefer
Our suggested comparison: use the same leaves, vessels, temperature and timing with two waters. Taste both as they cool. Compare aroma, texture, bitterness, sweetness and finish over several infusions, and record the exact bottle and profile alongside your recipe.
Keep the water constant while adjusting a recipe. Once you know the tea, change the water as a separate experiment. A bottle that works for one tea may be less convincing with another, and your preferred cup matters more than a ranking.
Sources
- USGS: dissolved-solids measurements and their methods
- How water changes tea
- Mont Roucous · composition
- Volvic France · mineral profile
- Volvic Germany · matching Naturelle profile
- Volvic Germany · residue at 180°C
- Volvic UK · different analysis
- Healthy Water · Bakhmaro product composition
- Healthy Water product catalogue · 2023 edition, Bakhmaro p. 27
- Healthy Water · producer
- Icelandic Glacial · water-report index
- NSF source-water report · 27 February 2026, pp. 2–3
- Icelandic Glacial FAQ · typical TDS
- Acqua Panna · international 1 L glass analysis
- Lauretana · source analysis
- VOSS · profiles by source
- Caramulo · brand composition
- Luso · product composition
- Boonrawd Asia Beverage · Singha and Purra product identities
- Highland Spring · average analysis at source