塩沢温泉
Shiozawa OnsenOperated by · 一般財団法人 高根村観光開発公社
- Color
- colorless and transparent
- Taste
- carbonated, with a fizzy tang
- Odor
- odorless
Sodium-Calcium Bicarbonate spring
- Sodium Na⁺
- salt's cation — pairs with chloride to make the water salty.
- Bicarbonate HCO₃⁻
- "soda" — softens skin, leaves it smooth.
- Circulationtired legs
- Smooth skindry, rough skin
- Recoveryfatigue, stress
A carbonated spring in the full legal sense: free CO₂ measures 1,042 mg/kg, past the threshold for the rare carbonated classification, so fine bubbles cling to the skin on entry. Beneath the fizz it is a sodium-calcium bicarbonate water — neutral in pH, moderately mineralized, with the soft, rounded feel bicarbonate gives. Metasilicic acid is generous enough to place it in Japan's beauty-water family, leaving skin noticeably smoother. The certificate records that the water, colorless, clear and faintly fizzy on the tongue at the spout, had turned slightly yellow-white and dropped a yellow-brown sediment within 24 hours of sampling — proof of how live the dissolved gas and iron still are when they meet air.
Sampled at delivery pipe·Analyzed Nov 11, 2019·株式会社神岡衛生社·Cert no. No.19-P-10010
