Itoen Migakarete Sumikitta Nihon no Mizu (磨かれて、澄みきった日本の水)
Japan · Mineral · sold in JapanWhat's in it
| 43better.com East Japan — Azumino, Nagano | 43better.com West Japan — Hamada, Shimane | |
|---|---|---|
| Hardness mg/L as CaCO₃ | 21 | 83 |
| Calcium (Ca) mg/L | 5 | 32 |
| Magnesium (Mg) mg/L | 2 | 8 |
| Potassium (K) mg/L | 0.3 | 1.2 |
- 43better.com — East Japan — Azumino, Nagano (label per 100 ml × 10) · report ↗
- 43better.com — West Japan — Hamada, Shimane (label per 100 ml × 10) · report ↗
Hardness and alkalinity are both in mg/L as CaCO₃, so they compare directly; grey numbers are worked out (hardness from Ca + Mg, alkalinity from HCO₃).
The label gives typical values; each measurement is one sample, so they differ a little. The Water list uses the label, and a measurement only where the label says nothing.
+ Add a measurement — members, on Tea Notes
About
Two sources: East Japan (Azumino, Nagano — very soft) and West Japan (Hamada, Shimane — harder).
Numbers: From 43better.com. Labels change and springs differ — check your bottle.