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water analysis · still · Germany

duessel aqua still (haaner felsenqulle)

reweedekakaufland

thtotal hardness

147 ppm

0258 ppm

alkalkalinity

108 ppm

0165 ppm

ions

Ca 44 mg/LMg 9 mg/LHCO₃ 132 mg/LNa 12 mg/LSO₄ 40 mg/LCl 27 mg/L

suitable for

Filter / Pour-Over22/100

Alkalinity high (108 ppm) – acidity gets buffered, tastes flat

Espresso25/100

Too hard (147 ppm) – scaling risk, dull taste

AeroPress / Moka3/100

Alkalinity high (108 ppm) – acidity gets buffered, tastes flat

Cold Brew38/100

Alkalinity high (108 ppm) – acidity gets buffered, tastes flat

Duessel Aqua Still (Haaner Felsenqulle) is a poor fit for Cold Brew (38/100) — hardness or alkalinity sit well outside the target zone.

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