Shirogane Onsen (Shirogane No. 14, 15, 18 and 19 Mixed)
Analysis UnverifiedShirogane Onsen began in 1950 when drilling in Biei struck scalding water, and the mayor of the day is said to have likened it to precious platinum rising from the earth, giving the spa its name. This source blends four wells, No. 14, 15, 18 and 19, in the national forest of the Shirogane district and supplies inns along the Biei River gorge. In the tub it turns a cloudy yellow-green, first slippery and then slightly squeaky on the skin, and it has long been called the "cane-forgetting spring," suiting those who want to warm to the core beside the sound of the gorge.
The bar length shows how abundant each component is compared to thresholds that make it "distinctive" (therapeutic spring standards, beauty spring criteria, etc.).
A natural moisturizer also used in skincare lotions. Forms a thin veil on the skin to reduce moisture loss after bathing.
A trace component with gentle antibacterial and anti-inflammatory action.
Transdermal absorption gently supports skin hydration and muscle relaxation.
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.
The source is hot and mineral-rich, so pour water over yourself before entering, soak for about ten minutes at a time with breaks, and drink water afterward.
Rich in sulfate at 1,569 mg/kg, this water is traditionally associated with relieving pain in stiff joints and muscles, while 588.2 mg/kg of chloride offers restorative warmth on chilly, tiring days.
Mineral-rich and warming, so avoid lightheadedness from long soaks; those with heart or blood-pressure concerns should keep baths short.
※ See the analysis data below for detailed contraindications
ANALYSIS DATAView all analysis fields ▼
Source Info
- Source name
- Shirogane Onsen (Shirogane No. 14, 15, 18 and 19 Mixed)
- Spring type
- Sodium-Magnesium-Calcium Sulfate and Chloride Hot Spring
- Old spring type name
- 含塩化土類－芒硝泉
- Source temperature
- 51.7℃
- pH
- 7
- Flow type
- 動力揚湯
- Osmotic pressure
- 低張性
Analysis Document
- Analysis date
- 2019-09-05
- Analyst organization
- 株式会社ホクカン 環境化学分析センター
- Registration No.
- 北海道第3号
Cations
- Sodium ion Na⁺
- 671 mg/kg
- Potassium ion K⁺
- 112 mg/kg
- Ammonium ion NH₄⁺
- 1.1 mg/kg
- Magnesium ion Mg²⁺
- 162 mg/kg
- Calcium ion Ca²⁺
- 249 mg/kg
- Aluminum ion Al³⁺
- 0.01 mg/kg
- Manganese ion Mn²⁺
- 1.4 mg/kg
- Iron(II) ion Fe²⁺
- 1.7 mg/kg
- Zinc ion Zn²⁺
- 0.04 mg/kg
- Lead ion Pb²⁺
- not detected
- Copper ion Cu²⁺
- 0.01 mg/kg
- Cadmium ion Cd²⁺
- not detected
- Total cations
- 1.2 mg/kg
Anions
- Fluoride ion F⁻
- 0.07 mg/kg
- Chloride ion Cl⁻
- 588 mg/kg
- Hydrogen sulfide ion HS⁻
- 0.00 mg/kg
- Thiosulfate ion S₂O₃²⁻
- 0.00 mg/kg
- Sulfate ion SO₄²⁻
- 1569 mg/kg
- Bicarbonate ion HCO₃⁻
- 511 mg/kg
- Carbonate ion CO₃²⁻
- 0.40 mg/kg
- Total anions
- 2.7 mg/kg
Undissociated Components
- Arsenious acid HAsO₂
- 0.30 mg/kg
- Metasilicic acid H₂SiO₃
- 188 mg/kg
- Metaboric acid HBO₂
- 16.4 mg/kg
- Total undissociated
- 0.20 mg/kg
Dissolved Gas
- Free carbon dioxide CO₂
- 92.7 mg/kg
- Free hydrogen sulfide H₂S
- 0.00 mg/kg
- Total dissolved gas
- 0.09 mg/kg
Totals
- Total dissolved substances
- 4.1 mg/kg
- Component total
- 4.2 mg/kg
- Evaporation residue
- 4.0 mg/kg
Usage
- Heating
- No
- Dilution
- No
- Recycle / Filter
- No
- Additives
- No
- Disinfection
- No
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