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Água Castello
Água Castello is a naturally carbonated Portuguese mineral water from Sociedade Central de Cervejas e Bebidas, classed by its producer as a calcium bicarbonate water. — as described by the brand
- pH5.29 ideal 6.5–8.59.0
- TDS470 mg/L ideal 225–500 mg/L9.3
- Sodium32 mg/L ideal up to 20 mg/L8.0
- Calcium102 mg/L ideal 36.7–80 mg/L · counts half6.6
- Magnesium27 mg/L ideal 16.7–30 mg/L · counts half9.6
- Sulfate17 mg/L ideal up to 248 mg/L10.0
- Chloride59 mg/L ideal up to 250 mg/L10.0
- NitrateNot published −0.1—
- Bicarbonate379 mg/L ideal 30–396.6 mg/L · counts half10.0
Each bar is out of 10 for that property. Deductions: −0.1 for missing values. Editorial score, not a health rating. How scores work →
Taste notes
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- SoftNo votes
- CrispNo votes
- SmoothNo votes
- MineralNo votes
- SaltyNo votes
- SweetNo votes
- BitterNo votes
- MetallicNo votes
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Computed from published numbers only: the waters whose mineral values are closest to Água Castello’s on a log scale, using the values both brands publish as single numbers (at least 5). pH and nitrate are not used. Similar minerals do not mean similar taste.
Source & spring
| Source | Portugal (spring location not stated by the brand) |
|---|---|
| Country | Portugal · all waters from Portugal |
| Water type | Natural mineral water · what this means |
| Still or sparkling | Sparkling |
| Data source | Sociedade Central de Cervejas e Bebidas technical sheet FT-001 Castello Original (rev. 2026-09-07), water characterization from report 2053-25 LAIST, Jan 2025 Last checked 2026-10-26 |
Portugal (spring location not stated by the brand)Água Castello ingredients & nutrition facts
per litre
Producer technical sheet (mg/L): calcium 102, magnesium 27, sodium 32, potassium 0.79, bicarbonate 379, sulfate 17, chloride 59, silica 19; dry residue at 180°C 470 (total mineralisation 655); total hardness 366; pH 5.29 (carbonated). Lab report 2053-25 LAIST, January 2025.
UK/EU label thresholds met
Applied to the published numbers for information; these indications legally apply to natural mineral water labels.
- Low mineral content (fixed residue ≤ 500 mg/L)
Brands update their analyses from time to time, and values can differ between bottle sizes, plants and batches. Check the label on your bottle. Spotted a change? See corrections.
Água Castello FAQ
Is Água Castello alkaline?
Água Castello has a published pH of 5.29, which is slightly acidic (7 is neutral).
How much sodium (salt) is in Água Castello?
Água Castello has 32 mg/L of sodium, as published.
Does Água Castello have electrolytes?
Its published analysis lists, per litre: calcium 102 mg/L, magnesium 27 mg/L, sodium 32 mg/L, potassium 0.79 mg/L, bicarbonate 379 mg/L, chloride 59 mg/L and sulfate 17 mg/L.
Is Água Castello spring, mineral or purified water?
Água Castello is a sparkling natural mineral water.
Where to buy
See the official Água Castello website for stockists. Retailer and price links are coming later.
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Not medical advice. Waterphile shows mineral values as published by each brand, for general information only. If you have a health condition, follow a restricted diet or prepare infant formula, ask a doctor, pediatrician or health visitor.