Dai-9-go / Dai-10-go no Kongo
Analysis VerifiedThe mineral-rich 'No. 9 and 10 blend' source springs naturally from the riverbed and rocky outcrops of the Toyohira River flowing through Jozankei Onsen, sourced by Daiichi Takimoto's private spring collection. The group operates three distinct mineral-composition springs, carefully blended to craft their signature concentrated thermal waters. Distributed to group facilities including Jozankei Daiichi Takimoto Suizantei, these springs deliver pure free-flowing source water with meticulous attention: old water is drawn from the bath floor as fresh source continuously fills from above.
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.
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 is an exceptionally hot source exceeding 60°C, areas near the outlet can be intensely heated. Outside the bathing season, water temperature is adjusted through flow volume rather than dilution—stir the water gently before settling in slowly to acclimate comfortably.
Rich in dissolved minerals totaling 3.135 g/kg, this chloride spring coats the skin with a protective thermal veil. Its sustained warmth combats poor circulation and frigidity—the moisturizing and heat-retaining properties linger long after bathing, wrapping your body in lasting comfort.
Avoid bathing during fever or when experiencing active heart disease. This spring water is not for drinking.
※ See the analysis data below for detailed contraindications
ANALYSIS DATAView all analysis fields ▼
Source Info
- Source name
- 第9号・10号の混合
- Spring type
- ナトリウム－塩化物温泉
- Old spring type name
- 弱食塩泉
- Source temperature
- 76.4℃
- pH
- 6.6
- Flow type
- 自然湧出
- Osmotic pressure
- 低張性
Analysis Document
- Analysis date
- 2014-11-21
- Analyst organization
- 一般財団法人 北海道薬剤師会公衆衛生検査センター
- Registration No.
- 北海道第2号
Cations
- Hydrogen ion H⁺
- 0.00 mg/kg
- Sodium ion Na⁺
- 829 mg/kg
- Potassium ion K⁺
- 153 mg/kg
- Ammonium ion NH₄⁺
- 1.4 mg/kg
- Magnesium ion Mg²⁺
- 7.0 mg/kg
- Calcium ion Ca²⁺
- 102 mg/kg
- Aluminum ion Al³⁺
- 0.00 mg/kg
- Manganese ion Mn²⁺
- 0.90 mg/kg
- Iron(II) ion Fe²⁺
- 0.70 mg/kg
- Iron(III) ion Fe³⁺
- 0.00 mg/kg
- Total cations
- 1.1 mg/kg
Anions
- Fluoride ion F⁻
- 1.4 mg/kg
- Chloride ion Cl⁻
- 1372 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⁻
- 90.2 mg/kg
- Bicarbonate ion HCO₃⁻
- 279 mg/kg
- Carbonate ion CO₃²⁻
- 0.00 mg/kg
- Dihydrogen phosphate H₂PO₄⁻
- 3.5 mg/kg
- Total anions
- 1.7 mg/kg
Undissociated Components
- Arsenious acid HAsO₂
- 4.9 mg/kg
- Metasilicic acid H₂SiO₃
- 146 mg/kg
- Metaboric acid HBO₂
- 145 mg/kg
- Total undissociated
- 0.30 mg/kg
Dissolved Gas
- Free carbon dioxide CO₂
- 91.1 mg/kg
- Free hydrogen sulfide H₂S
- 0.00 mg/kg
- Total dissolved gas
- 0.09 mg/kg
Totals
- Total dissolved substances
- 3.1 mg/kg
- Component total
- 3.2 mg/kg
- Evaporation residue
- 2.9 mg/kg
Usage
- Heating
- No
- Dilution
- No
- Recycle / Filter
- No
- Additives
- No
- Disinfection
- No
Indications & Contraindications
- Bathing indications
- Chronic pain or stiffness in muscles and joints, Muscle stiffness due to motor paralysis, Gastrointestinal dysfunction, High blood pressure (mild), Impaired glucose tolerance (diabetes), Dyslipidemia, Mild asthma or emphysema, Autonomic instability, Hemorrhoid pain, Stress-induced symptoms (sleep disorders, depression, etc.), Convalescence, Fatigue recovery, Health promotion, Cuts and grazes, Peripheral circulatory failure, Poor circulation, Depression, Xeroderma
- Contraindications
- Active diseases (especially with fever), active tuberculosis, advanced malignant tumors or severe anemia resulting in marked physical weakness, severe heart or lung diseases causing shortness of breath upon slight exertion, severe kidney diseases with edema, gastrointestinal bleeding, visible bleeding, acute exacerbation of chronic diseases
Drinking
- Drinkability
- Not drinkable
- Drinking notes
- Not for drinking.
