蛇荒川折口、インキョ、上の川混合源泉
Jaarakawa Origuchi, Inkyo and Kaminokawa Mixed SpringOperated by · 蛇荒川湯花採取組合
Mixed source
酸
Acidic
+ 含硫黄泉 · Sulfate · Chloride
- Color
- colorless and clear
- Taste
- astringent
- Odor
- strong hydrogen sulfide
Hydrogen Sulfate-Chloride spring
pH 1.7AcidicHot source · 53°CUltra-acidicSulfur-richHigh silica
Composition fingerprint2.8 g/kg dissolved · Hypotonic
H⁺47
Mg²⁺19
Al³⁺16
SO₄²⁻52
Cl⁻29
HSO417
◀ CationsAnions ▶
- Hydrogen H⁺
- makes the water acidic — sharp and bactericidal.
- Sulfate SO₄²⁻
- "gypsum / Glauber's salt" — vessels and wound healing.
Known good for
- Skin conditionsatopic skin, eczema
- Circulationtired legs
- Aches & jointsstiff shoulders
- Sensitive-skin cautionbroken or dry skin
A blended source at Zao Onsen, pooling three free-flowing wells in the Nakamori district and sampled at the wellhead. At pH 1.7 the water is sharply acidic, enough to prickle on contact, and the certificate's sensory test records it as colorless and clear but throwing off a strong hydrogen sulfide note with a distinctly astringent taste. Sulfate and chloride carry a moderate mineral load, and metasilicic acid at 213.6 mg/kg leaves the kind of silica film that smooths skin after such an aggressive soak.
Sampled at wellhead·Analyzed Dec 2, 2019·株式会社丹野·Cert no. O1900007