Meto Onsen Yumoto No. 1
Analysis UnverifiedMeto Onsen was discovered in the Meiji era and opened in 1904 as a secluded inn deep in the Tokachi mountains. The 58°C source flows naturally beside the Nukanan River and is cooled by a heat exchanger, never with added water, before reaching the tubs. Its pH 9.5 alkalinity and carbonate give a distinctly slick, silky feel. Clear with a faint hydrogen-sulfide scent, it suits those who want to soak at leisure surrounded by primeval forest and the sound of the stream.
The bar length shows how abundant each component is compared to thresholds that make it "distinctive" (therapeutic spring standards, beauty spring criteria, etc.).
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.
Tub temperatures vary and the hotter tubs can reach around 44°C. Pour water over yourself first, start in a cooler tub, rest between soaks, and drink water after bathing.
Its pH 9.5 alkalinity and 30.0 mg/kg of carbonate soften the outer skin for a smooth, silky touch, while 82.5 mg/kg of metasilicic acid adds a moisturized feel, suiting times when skin feels rough or when you simply want to warm up and unwind.
As an alkaline spring, those with sensitive skin may wish to rinse lightly with fresh water afterward; avoid long soaks in the hotter tubs.
※ See the analysis data below for detailed contraindications
ANALYSIS DATAView all analysis fields ▼
Source Info
- Source name
- Meto Onsen Yumoto No. 1
- Spring type
- Alkaline Simple Hot Spring
- Old spring type name
- 単純温泉
- Source temperature
- 58.3℃
- pH
- 9.5
- Flow type
- 自然湧出
- Osmotic pressure
- 低張性
Analysis Document
- Analysis date
- 2019-04-09
- Analyst organization
- 株式会社第一岸本臨床検査センター
- Registration No.
- 北海道第12号
Cations
- Sodium ion Na⁺
- 59.8 mg/kg
- Potassium ion K⁺
- 1.7 mg/kg
- Ammonium ion NH₄⁺
- not detected
- Magnesium ion Mg²⁺
- 1.0 mg/kg
- Calcium ion Ca²⁺
- 3.0 mg/kg
- Aluminum ion Al³⁺
- 0.10 mg/kg
- Manganese ion Mn²⁺
- not detected
- Iron(II) ion Fe²⁺
- not detected
- Iron(III) ion Fe³⁺
- not detected
- Zinc ion Zn²⁺
- not detected
- Lead ion Pb²⁺
- not detected
- Copper ion Cu²⁺
- not detected
- Cadmium ion Cd²⁺
- not detected
- Total cations
- 0.07 mg/kg
Anions
- Fluoride ion F⁻
- 1.2 mg/kg
- Chloride ion Cl⁻
- 19.6 mg/kg
- Hydroxide ion OH⁻
- 0.50 mg/kg
- Hydrogen sulfide ion HS⁻
- 1.5 mg/kg
- Thiosulfate ion S₂O₃²⁻
- 0.00 mg/kg
- Sulfate ion SO₄²⁻
- 34.3 mg/kg
- Bicarbonate ion HCO₃⁻
- 36.7 mg/kg
- Carbonate ion CO₃²⁻
- 30.0 mg/kg
- Hydrogen phosphate HPO₄²⁻
- not detected
- Metaborate ion BO₂⁻
- 3.3 mg/kg
- Total anions
- 0.13 mg/kg
Undissociated Components
- Metasilicic acid H₂SiO₃
- 82.5 mg/kg
- Total undissociated
- 0.08 mg/kg
Dissolved Gas
- Free carbon dioxide CO₂
- 0.00 mg/kg
- Free hydrogen sulfide H₂S
- 0.00 mg/kg
- Total dissolved gas
- 0.00 mg/kg
Totals
- Total dissolved substances
- 0.28 mg/kg
- Component total
- 0.28 mg/kg
- Evaporation residue
- 0.25 mg/kg
Usage
- Heating
- No
- Dilution
- No
- Recycle / Filter
- No
- Additives
- No
- Disinfection
- No
Indications & Contraindications
- Bathing indications
- Autonomic instability, Insomnia, Depression
- General indications
- High blood pressure (mild), Rheumatoid arthritis, 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
