四季の郷温泉
Shiki-no-Sato OnsenSampled at wellhead
湯
Simple
Classification
Sodium Carbonate spring
A sodium-led alkaline simple thermal spring with a remarkable slippery feel on the skin — pH 9.5 at the wellhead rising to 9.8 in the lab, squarely in the strongly alkaline range that defines Japan's beauty-water family. Lightly mineralized at 152 mg/kg, so the water is gentle and unobtrusive on the body. A faint rotten-egg note of H₂S and a hint of sulfur on the tongue emerge straight from the source.
pH
9.50
Alkaline
Source temperature
38.0°C
Warm
Tonicity
0.15g/kg
Hypotonic
Flow rate
154L/min
Typical
- Color
- Colorless and clear
- Taste
- Faint sulfur taste
- Odor
- Faint hydrogen-sulfide note
Highlights
- Strongly alkaline
- Top-decile alkaline
Analyzed Mar 6, 2020·一般社団法人 和歌山県薬剤師会 医薬品・公衆衛生検査センター·Cert no. 第E2002233号