甲府市内温泉旅館組合 第一号泉
Kofu Onsen Ryokan Association Spring No. 1Operated by · 甲府市内温泉旅館組合
Sampled at wellhead
塩
Chloride
+ Bicarbonate
Classification
Sodium Chloride-Bicarbonate spring
A sodium-led chloride spring with bicarbonate softness layered in, classified as a high-temperature water. Weakly alkaline and gentle on the skin, it carries a faint rotten-egg note of H₂S at the source, fine clinging bubbles and a barely-there salty tang. A generous 148 mg/kg of metasilicic acid leaves the kind of silica film that makes skin feel noticeably smoother. It is served as untreated source flow with no dilution or heating, and the posted indications cite neuralgia, rheumatism and muscle ache.
pH
8.30
Weakly alkaline
Source temperature
44.8°C
Hot
Tonicity
1.43g/kg
Hypotonic
Free CO₂
27mg/kg
Low
- Color
- faintly yellow and clear, with fine bubbles
- Taste
- very slightly salty
- Odor
- faint hydrogen sulfide
Highlights
- High silica
Analyzed Feb 22, 2018·一般社団法人 山梨県食品衛生協会·Cert no. 梨食第29-12号