The Water Dictionary

Tap Water in S72

Shafton and Cudworth 2024Yorkshire Water

Tap water in Shafton and Cudworth 2024, supplied by Yorkshire Water, has the character of a chalk aquifer source, typical of southern and eastern England. It's moderately hard, in the upper half of the national range, with a total hardness of 265 mg/L as CaCO₃.


Mineral composition

mg/L
Calcium93
Magnesium8
Sodium17
Sulfate126
Chloride29
Bicarbonate~156
~ Estimated from hardness and ion balance — not directly measured by the water company.

Additional info

Hardness264.7 as CaCO₃
Alkalinity127.7 as CaCO₃
pH7.3
Conductivity542 µS/cm
SourceYorkshire Water
Data year2024

What this means

Kettle & appliances

Limescale buildup is noticeable and ongoing. Kettles will develop visible deposits within weeks, and heating elements in boilers and washing machines will need periodic attention. A water softener or scale inhibitor is worth considering.

Espresso

This water will scale espresso machines meaningfully. Flavour-wise, the high mineral content tends to flatten acidity and produce a heavier, less nuanced shot with lighter roasts. Darker roasts and milk-based drinks fare better: the body and density that hard water produces can carry well through milk. Regular descaling is essential, and filtration or blending with softer water is worth considering.

Filter & pour-over

The effect is more noticeable here than in espresso, because the higher water-to-coffee ratio amplifies the mineral influence. Lighter roasts will taste muted and uniform; origin character gets buried. Darker roasts hold up better, but the cup will lack the clarity that filter brewing is best at producing.

Drinking & cooking

The mineral taste is perceptible. Some people prefer it; others find it chalky. Hard water can affect how well soap and detergent lather, and it leaves visible residue on glass and stainless steel.

Bicarbonate

Significant buffering that pushes mash pH high enough to require acid additions for most beer styles other than stouts, and produces espresso that is notably flat and heavy, with muted acidity and a tendency toward a uniform, opaque flavour profile.


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Nearby areas


Data sourced from Yorkshire Water (2024). Looking for a specific address? Look up your full postcode for the most accurate result.