Tesco British Natural Mineral Water
Tesco British Natural Mineral Water is sourced from a spring in the Eden Valley, Cumbria. The water is bottled by Roxane (a subsidiary of the French company Sources Alma). This product replaced Tesco Ashbeck in late 2024, drawing from the same Eden Valley source.
Mineral composition
| mg/L | |
|---|---|
| Calcium | 40 |
| Magnesium | 14 |
| Sodium | 6 |
| Sulfate | 10 |
| Chloride | 13 |
| Bicarbonate | 166 |
Compositions can vary by season and source. Read our methodology.
Mineral character
Tesco British Natural Mineral Water is a moderately soft water with a clean, balanced profile. Bicarbonate is the highest ion at 166 mg/L, with calcium at 40 mg/L and magnesium at 14 mg/L giving a total hardness of 158 mg/L as CaCO₃. Sulphate (10 mg/L), chloride (13 mg/L), and sodium (6 mg/L) are all low. The profile is near-identical to the discontinued Tesco Ashbeck, with only chloride reduced from 17 to 13 mg/L.
Use-case suitability
- CoffeeNot used in any current coffee recipe, but hardness 158 mg/L sits within the 9–266 mg/L range typical for these targets.
- TeaNot used in any current tea recipe. Hardness 158 mg/L is above the 37–59 mg/L range of these targets.
- BrewingNot used in any current brewing recipe, but hardness 158 mg/L sits within the 26–922 mg/L range typical for these targets.
- BakingNot used in any current baking recipe, but hardness 158 mg/L sits within the 46–390 mg/L range typical for these targets.
- AquariumAppears in blends for Axolotl.
- HorticultureNot used in any current horticulture recipe. Hardness 158 mg/L is above the 12–54 mg/L range of these targets.
Used in these recipes
Where to buy
UK
Tesco
£0.22-0.28 per litre
Tesco British Natural Mineral Water is available exclusively at Tesco stores in the UK, typically £0.22–0.28 for 2 L (as of March 2026). It replaced Tesco Ashbeck in late 2024. Sold in still format.