Suginoi Hotel Mixed Spring
Analysis UnverifiedThis spring sits high in Kankaiji, one of Beppu's eight hot spring districts, and blends two sources through a mixing valve: the Sugi-2 well and a source at the Minamitateishi geothermal power plant, a very Beppu way of using the earth's heat for both power and bathing. Emerging at 91.4°C, its anions are 64 percent chloride and 21 percent sulfate with plenty of carbonate, giving a mildly alkaline water. Clear and faintly salty, its abundant metasilicic acid lends a soft, gentle feel.
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.
- Chloride (salt)546 mg/kg
- Feel
- Tastes salty; the warmth lasts after you get out.
- Said to
- Salt is said to form a film on the skin that keeps in heat and moisture. Bathing indications include cuts, poor circulation and dry skin.
- Note
- May sting cuts. Strong salty water can tire you—avoid long soaks.
- Sulfate247 mg/kg
- Feel
- Your skin feels moist; the water may taste slightly bitter.
- Said to
- Said to retain heat well and help heal cuts. Bathing indications include cuts and dry skin.
- Note
- It warms you well—do not stay in too long.
- Alkaline (pH)pH 8.6
- Feel
- Feels slippery and silky on the skin.
- Said to
- Said to remove old skin cells and excess sebum.
- Note
- Skin can dry out afterwards—moisturize after bathing.
- Metasilicic acid379 mg/kg
- Feel
- Your skin may feel smoother.
- Said to
- 50 mg/kg or more is said to mark a “skin-beautifying spring”; it is also used in skincare.
- Note
- The “skin-beautifying” label is a common rule of thumb, not a legal standard.
- Source temperature91.4℃
- Feel
- The source is 42°C or hotter; the bath may be on the hot side.
- Said to
- Heat is said to boost circulation and warm the body.
- Note
- Older people and those with high blood pressure or heart conditions should avoid baths of 42°C or more. Keep soaks short.
Effects are general descriptions based on the Ministry of the Environment’s indications by spring type, not a guarantee.
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 91.4°C, so test each pool's temperature first. At pH 8.6 the water softens skin, so scrub gently, and rinse only lightly afterward to keep the chloride's warming effect.
With 546.1 mg/kg of chloride forming a light salt film, the water may offer restorative warmth, while 247.2 mg/kg of sulfate is traditionally associated with helping relieve pain in stiff shoulders and back.
The source is 91.4°C, so check the temperature to avoid burns. The water warms you quickly, so avoid long soaks and drink water often.
※ See the analysis data below for detailed contraindications
ANALYSIS DATAView all analysis fields ▼
Source Info
- Source name
- Suginoi Hotel Mixed Spring
- Spring type
- Sodium Chloride and Sulfate Hot Spring
- Source temperature
- 91.4℃
- pH
- 8.6
- Flow type
- 掘削自噴
- Osmotic pressure
- 低張性
Analysis Document
- Analysis date
- 2020-09-09
- Analyst organization
- 株式会社東洋環境分析センター
- Registration No.
- 福岡県第8号
Cations
- Lithium ion Li⁺
- 5.4 mg/kg
- Sodium ion Na⁺
- 485 mg/kg
- Potassium ion K⁺
- 50.8 mg/kg
- Ammonium ion NH₄⁺
- 0.30 mg/kg
- Magnesium ion Mg²⁺
- 0.10 mg/kg
- Calcium ion Ca²⁺
- 4.8 mg/kg
- Aluminum ion Al³⁺
- 0.20 mg/kg
- Zinc ion Zn²⁺
- < 0.05 mg/kg
- Lead ion Pb²⁺
- < 0.05 mg/kg
- Strontium ion Sr²⁺
- 0.10 mg/kg
- Copper ion Cu²⁺
- < 0.05 mg/kg
- Cadmium ion Cd²⁺
- < 0.05 mg/kg
- Total cations
- 547 mg/kg
Anions
- Fluoride ion F⁻
- 1.5 mg/kg
- Chloride ion Cl⁻
- 546 mg/kg
- Sulfate ion SO₄²⁻
- 247 mg/kg
- Bicarbonate ion HCO₃⁻
- 48.8 mg/kg
- Carbonate ion CO₃²⁻
- 78.0 mg/kg
- Bromide ion Br⁻
- 2.7 mg/kg
- Hydrogen phosphate HPO₄²⁻
- 0.20 mg/kg
- Total anions
- 925 mg/kg
Undissociated Components
- Arsenious acid HAsO₂
- 0.80 mg/kg
- Metasilicic acid H₂SiO₃
- 379 mg/kg
- Metaboric acid HBO₂
- 24.1 mg/kg
- Total undissociated
- 404 mg/kg
Dissolved Gas
- Free carbon dioxide CO₂
- < 0.1 mg/kg
- Free hydrogen sulfide H₂S
- < 0.1 mg/kg
Trace Components
- Radon Rn
- 0.3 Bq/kg
Totals
- Total dissolved substances
- 1875 mg/kg
- Component total
- 1875 mg/kg
- Evaporation residue
- 1851 mg/kg
Usage
- Usage status
- Unknown
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
