Tap Water in CM2
Z607 — Essex & Suffolk Water
Tap water in Z607, supplied by Essex & Suffolk 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 106 mg/L as CaCO₃.
Mineral composition
| mg/L | |
|---|---|
| Calcium | awaiting data |
| Magnesium | awaiting data |
| Sodium | awaiting data |
| Sulfate | awaiting data |
| Chloride | awaiting data |
| Bicarbonate | awaiting data |
Additional info
| Hardness | 106 as CaCO₃ |
| Alkalinity | awaiting data |
| pH | awaiting data |
| Conductivity | awaiting data |
| Source | Essex & Suffolk 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
Extremely high buffering that makes this water difficult to work with for any brewing or coffee application without significant dilution or acid treatment: mash pH will sit stubbornly high, extraction will be unbalanced, and espresso will taste flat and chalky with no discernible acidity.
Nearby areas
Data sourced from Essex & Suffolk Water (2024). Looking for a specific address? Look up your full postcode for the most accurate result.