松原温泉
Matsubara OnsenOperated by · 松原温泉組合
- Color
- colorless and clear
- Taste
- tasteless
- Odor
- odorless
Sodium-Calcium-Magnesium Bicarbonate-Chloride spring
- Sodium Na⁺
- salt's cation — pairs with chloride to make the water salty.
- Bicarbonate HCO₃⁻
- "soda" — softens skin, leaves it smooth.
- Aches & jointsstiff shoulders
- Smooth skindry, rough skin
- Recoveryfatigue, stress
A gentle simple thermal spring rising in the Matsubara district of Beppu. Weakly alkaline and only lightly mineralized at 910 mg/kg of dissolved solids, it nonetheless carries a generous 207 mg/kg of metasilicic acid, which puts it squarely in Japan's beauty-water family: silica that thick leaves a thin film on the skin and makes it feel noticeably smoother afterwards. The water is colorless, clear, tasteless and odorless, so there is nothing sharp or heavy about it. Note that the certificate samples at the bath inlet rather than the wellhead, so these figures describe the water as it actually reaches the tub.
Sampled at bath inlet·Analyzed Nov 21, 2019·公益社団法人大分県薬剤師会·Cert no. 大薬検 第7R-19110021号