岡本屋旅館
Okamotoya Ryokan SpringOperated by · 有限会社 岡本屋
- Color
- colorless and clear
- Taste
- moderately sour
- Odor
- faint 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 sharp, prickly acidic spring from Myoban in Beppu, carrying sulfur as a second character: strongly acidic enough to sting slightly on contact, colorless and clear, with a tart taste and the faint rotten-egg note of H₂S. It is lightly mineralized overall, yet rich in metasilicic acid at 153 mg/kg, which leaves a thin silica film on the skin and places it in the beauty-water family despite its acidity. Among Japan's hottest natural sources; the analysed sample was taken from the storage basin rather than the wellhead.
Sampled at storage tank·Analyzed Jun 1, 2015·公益社団法人大分県薬剤師会 検査センター·Cert no. 大薬検 第 7R-27060003号