仙石高原開発株式会社 供給温泉(新姥子温泉)
Sengoku Kogen Kaihatsu Supplied Spring (Shin-Ubako Onsen)Operated by · 仙石高原開発株式会社
Mixed source
Sampled at mixing tank
湯
Simple
A blended supply source (Shin-Ubako Onsen) drawing from six wells across Motohakone and Sengokuhara. A genuinely hot natural source (61 °C at the wellhead, served to bathers at 42 °C), classified as a simple thermal spring — lightly mineralized at 478 mg/kg of evaporation residue, weakly alkaline, and gentle on the body. A faint hydrogen sulfide note carries through, and a generous 162 mg/kg of metasilicic acid leaves the kind of silica film that gives skin a noticeably smoother feel afterwards.
Source temperature
61.0°C
Hot
Tonicity
Hypotonic
Free CO₂
0.10mg/kg
Low
- Color
- colorless and clear
- Taste
- tasteless
- Odor
- very faint hydrogen sulfide
Highlights
- High silica
- Top-decile hot
Analyzed Jun 19, 2014·一般財団法人 北里環境科学センター·Cert no. 神奈川県知事登録 第2号