water analysis · still · France

cristaline source rey

carrefourleclercauchanmonoprix

thtotal hardness

160 ppm

0258 ppm

alkalkalinity

90 ppm

0165 ppm

ions

Ca 54 mg/LMg 6 mg/LHCO₃ 110 mg/LNa 1.4 mg/L

estimated

suitable for

Filter / Pour-Over12/100

Alkalinity high (90 ppm) – acidity gets buffered, tastes flat

Espresso43/100

Acceptable – some trade-offs

AeroPress / Moka12/100

Too hard (160 ppm) – scaling risk, dull taste

Cold Brew29/100

Alkalinity high (90 ppm) – acidity gets buffered, tastes flat

For Espresso, Cristaline Source Rey only reaches 43/100 — a weak choice as coffee water.

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