Tap Water in TN8
Kent Hatch Supply Zone — SES Water
Tap water in Kent Hatch Supply Zone, supplied by SES Water, has the character of a blended surface and groundwater supply, with no dominant mineral signature. It's moderately soft, in the lower end of the national range, with a total hardness of 126 mg/L as CaCO₃.
Mineral composition
| mg/L | |
|---|---|
| Calcium | 51 |
| Magnesium | 6 |
| Sodium | 18 |
| Sulfate | 66 |
| Chloride | 28 |
| Bicarbonate | 60 |
Additional info
| Hardness | 126 as CaCO₃ |
| Alkalinity | 60 as CaCO₃ |
| pH | 7.73 |
| Conductivity | 335 µS/cm |
| Source | SES Water |
| Data year | 2024 |
What this means
Kettle & appliances
Some light mineral residue may appear in kettles over time, but significant limescale buildup is unlikely. No treatment needed for most appliances.
Espresso
A good range for espresso. Enough mineral content to provide body and balance acidity without posing a real scale risk to the machine. Most specialty coffee water targets fall in or near this band.
Filter & pour-over
Excellent for filter brewing. The slight mineral content adds body and sweetness without masking acidity, giving a balanced cup across most roast levels. This is close to the SCA's recommended range for brewed coffee.
Drinking & cooking
Tastes clean with a slight mineral presence. Good all-round water for cooking; it won't interfere with delicate flavours or leave noticeable deposits.
Bicarbonate
Enough buffering to take the sharpest edges off mash pH and espresso acidity without flattening either: a versatile range that works well for amber ales, wheat beers, and most filter coffee and espresso preparations, providing body without masking origin character.
Closest water profiles
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TN37
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TN38
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Data sourced from SES Water (2024). Looking for a specific address? Look up your full postcode for the most accurate result.