肘折温泉 組合2号・3号・5号源泉、松屋1号源泉(貯湯槽混合)
Hijiori Onsen Communal Wells No.2/3/5 + Matsuya No.1 (storage-tank blend)Operated by · 高山松太郎(松屋)
Mixed source
- Color
- colorless and slightly turbid at the wellhead · yellow and slightly turbid in the lab
- Taste
- salty, ferrous, astringent at the wellhead / salty in the lab
- Odor
- odorless
Sodium Chloride-Bicarbonate spring
- Sodium Na⁺
- salt's cation — pairs with chloride to make the water salty.
- Chloride Cl⁻
- table-salt anion — coats the skin and holds heat in.
- Warmingcold sensitivity
- Aches & jointsstiff shoulders
- Smooth skindry, rough skin
A blended source served from a storage tank at Matsuya in Hijiori Onsen: three communal wells (Kumiai No.2, No.3, No.5) plus the inn's own Matsuya No.1, combined before delivery. The chemistry is sodium-led chloride water with bicarbonate softness layered in — a salty, heat-retaining body softened by a HCO₃ finish. At the wellhead the water is faintly cloudy with a salt, iron and astringent bite to the tongue; in the lab sample it yellows to a pale tint, the trace iron oxidizing on contact with air. Metasilicic acid runs a generous 121 mg/kg, putting it in the Japanese 'beauty-water' family with a soft, smoothing feel on the skin.
Sampled at mixing tank·Analyzed Aug 19, 2016·日本環境科学株式会社·Cert no. 日環科 第338号
