Hotel Milione
Analysis VerifiedThis source, naturally gushing 200 liters per minute from the Toyohira River riverbed in Jozankei Onsen town, began supplying surrounding hot spring facilities in 1997, named after its founder, Jozan Miizumi. Its colorless, clear waters, with a faint hint of sulfur, are characterized by a gentle salt veil that envelops the skin. The heat slowly penetrates to the body's core, providing restorative warmth that lingers long after bathing. It is a renowned spring offering deep relaxation for those seeking to escape daily hustle and warm their mind and body.
The bar length shows how abundant each component is compared to thresholds that make it "distinctive" (therapeutic spring standards, beauty spring criteria, etc.).
Undissociated boric acid with antibacterial action that keeps the skin surface clean.
A natural moisturizer also used in skincare lotions. Forms a thin veil on the skin to reduce moisture loss after bathing.
Scores are calculated from mineral analysis data based on the Mineral Spring Analysis Guidelines (Ministry of Environment, Japan). They are unrelated to facility atmosphere or service quality.
▸Note
The temperature, pH and component values shown here are based on the hot spring analysis (source). Actual values in the bath may differ depending on heating, dilution, recycling and filtration. Please check current usage status at the facility.
Since this source runs quite hot, gently rinse your hands and feet with the waters before entering to acclimate your body gradually. The salt content prevents sweat evaporation, warming you thoroughly—though it also risks thermal fatigue, so limit soak duration, stay hydrated, and pace yourself thoughtfully.
This neutral-pH spring (6.85) is remarkably mineral-rich, containing 1,568 mg of chloride ions per kilogram. A fine saline veil envelops your skin, trapping warmth even after you emerge—ideal for those battling chilled extremities and poor peripheral circulation. The waters gently nourish parched skin while soothing away daily fatigue and stress.
Avoid bathing if you have acute fever, active tuberculosis, or severe heart or lung conditions. This spring water is not suitable for drinking.
※ See the analysis data below for detailed contraindications
ANALYSIS DATAView all analysis fields ▼
Source Info
- Source name
- Hotel Milione
- Spring type
- ナトリウム-塩化物温泉
- Old spring type name
- 弱食塩泉
- Source temperature
- 84.8℃
- pH
- 6.85
- Flow rate
- 200 L/min
- Flow type
- 自然湧出
- Osmotic pressure
- 低張性
Analysis Document
- Analysis date
- 2022-08-06
- Analyst organization
- 日本衛生株式会社
- Registration No.
- 北海道第11号
Cations
- Hydrogen ion H⁺
- 0.08 mg/kg
- Sodium ion Na⁺
- 870 mg/kg
- Potassium ion K⁺
- 161 mg/kg
- Ammonium ion NH₄⁺
- 0.90 mg/kg
- Magnesium ion Mg²⁺
- 8.1 mg/kg
- Calcium ion Ca²⁺
- 126 mg/kg
- Aluminum ion Al³⁺
- 0.00 mg/kg
- Manganese ion Mn²⁺
- 1.0 mg/kg
- Iron(II) ion Fe²⁺
- 0.30 mg/kg
- Copper ion Cu²⁺
- 0.00 mg/kg
- Cadmium ion Cd²⁺
- 0.00 mg/kg
- Total cations
- 1.2 mg/kg
Anions
- Fluoride ion F⁻
- 1.6 mg/kg
- Chloride ion Cl⁻
- 1568 mg/kg
- Hydroxide ion OH⁻
- 0.00 mg/kg
- Hydrogen sulfide ion HS⁻
- 0.00 mg/kg
- Thiosulfate ion S₂O₃²⁻
- 0.00 mg/kg
- Sulfate ion SO₄²⁻
- 81.9 mg/kg
- Bicarbonate ion HCO₃⁻
- 322 mg/kg
- Carbonate ion CO₃²⁻
- 0.00 mg/kg
- Bromide ion Br⁻
- 3.7 mg/kg
- Dihydrogen phosphate H₂PO₄⁻
- 2.8 mg/kg
- Total anions
- 2.0 mg/kg
Undissociated Components
- Arsenious acid HAsO₂
- 4.8 mg/kg
- Metasilicic acid H₂SiO₃
- 157 mg/kg
- Metaboric acid HBO₂
- 147 mg/kg
- Total undissociated
- 0.31 mg/kg
Dissolved Gas
- Free carbon dioxide CO₂
- 150 mg/kg
- Free hydrogen sulfide H₂S
- 0.00 mg/kg
- Total dissolved gas
- 0.15 mg/kg
Totals
- Total dissolved substances
- 3.5 mg/kg
- Component total
- 3.6 mg/kg
- Evaporation residue
- 3.2 mg/kg
Usage
- Heating
- No
- Dilution
- Yes（源泉温度が高いため、加水しております。）
- Recycle / Filter
- Recycled / Filtered / 衛生管理のため及び浴槽内の水温を均一にするため、循環ろ過装置を使用しております。
- Additives
- No
- Disinfection
- Yes（衛生管理のため、塩素系薬剤を使用しております。）
Indications & Contraindications
- Bathing indications
- Cuts and grazes, Peripheral circulatory failure, Poor circulation, Depression, Xeroderma
- General indications
- High blood pressure (mild), Rheumatoid arthritis, Autonomic instability, Insomnia, Chronic pain or stiffness in muscles and joints, Muscle stiffness due to motor paralysis, Gastrointestinal dysfunction
- Contraindications
- Acute illness (especially with fever), Active tuberculosis, Malignant tumors, Severe heart disease, Respiratory failure, Renal failure, Bleeding disorders, Severe anemia, Any actively progressing illness, Pregnancy (especially early and late stages)
Drinking
- Drinkability
- Not drinkable
- Drinking notes
- This hot spring is not used for drinking.
