あさや源泉(子宝の湯)
Asaya Spring (Kodakara-no-yu)Operated by · 株式会社あさやホテル
Sodium Sulfate-Chloride spring
Asaya's "Kodakara-no-yu" wellhead is a simple alkaline thermal spring (hypotonic, alkaline, normal-temperature class). Both the on-site pH 8.8 and the laboratory pH 8.77 sit well into alkaline territory, giving the characteristic slippery, skin-smoothing feel of Japan's "beauty-water" family. The water is lightly mineralized — 0.304 g/kg dissolved solids and 0.311 g/kg evaporation residue — which keeps the bath gentle, with little of the assertive mineral edge of stronger chemistries. Colorless, tasteless, and odorless at the spout, it presents as a soft, unobtrusive single-thermal source whose appeal lies in the alkaline silk-water feel rather than in pronounced ions or aroma.
- Color
- colorless and transparent
- Taste
- tasteless
- Odor
- odorless
- Top-decile alkaline
Analyzed Jul 8, 2022·一般社団法人 栃木県薬剤師会·Cert no. 第14感第1号