別府温泉 桜湯
Beppu Onsen Sakura-yuOperated by · 別府温泉 桜湯
- Color
- colorless and transparent
- Taste
- tasteless
- Odor
- odorless
Sodium-Magnesium Bicarbonate-Chloride spring
- Sodium Na⁺
- salt's cation — pairs with chloride to make the water salty.
- Bicarbonate HCO₃⁻
- "soda" — softens skin, leaves it smooth.
- Smooth skindry, rough skin
- Aches & jointsstiff shoulders
- Warmingcold sensitivity
A sodium- and magnesium-led bicarbonate-chloride spring, carried on the certificate under its older name as a chloride-earth soda water — the jūsō-sen style, soft on the skin, with a salt-tinged finish from the chloride sub-type. Neutral and hypotonic, it is gentle rather than assertive, with a moderate 1,167 mg/kg of dissolved solids giving it real body. What stands out is metasilicic acid at 243 mg/kg, well into Japan's beauty-water territory: silica at that level leaves a thin film that makes skin feel noticeably smoother afterwards. Note that the sample was drawn at the bath inlet rather than at the wellhead, so these figures describe the water as it actually reaches the tub.
Sampled at bath inlet·Analyzed Aug 5, 2025·公益社団法人大分県薬剤師会 検査センター·Cert no. 大薬検 第7R-25080002号