明礬 湯の里
Myoban Yunosato SpringOperated by · 株式会社みょうばん湯の里
- Color
- colorless, slightly turbid
- Taste
- faintly astringent
- Odor
- strong hydrogen sulfide
Hydrogen Sulfate spring
- Hydrogen H⁺
- makes the water acidic — sharp and bactericidal.
- Sulfate SO₄²⁻
- "gypsum / Glauber's salt" — vessels and wound healing.
- Skin conditionsatopic skin, eczema
- Circulationtired legs
- Aches & jointsstiff shoulders
- Sensitive-skin cautionbroken or dry skin
A strongly acidic, sulfur-bearing spring from the Myoban district of Beppu, certified as an acidic sulfur-containing simple thermal water at pH 2.3 — sharp enough to prickle slightly on the skin. At the source it runs colorless but faintly clouded, carrying an unmistakable rotten-egg note of H₂S and a weakly astringent taste on the lips. Dissolved solids are light at 772 mg/kg, yet metasilicic acid reaches 160.8 mg/kg, leaving the kind of thin silica film that makes skin feel noticeably smoother afterwards.
Sampled at wellhead·Analyzed Mar 13, 2015·大分県衛生環境研究センター·Cert no. 衛環研第265号の12