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WHAT'S IN THE WATER?
Kurokawa's hot spring waters are cooled to between 40 and 42℃ for comfortable bathing. Generally the waters are
ideal for relaxing, soaking tired muscles and pampering the skin, and certain types of spring are said to help treat
speciﬁc illnesses and conditions.
The following is a very simple KEY to the eight recognised categories of hot spring waters found in Kurokawa.
Mildly Acidic Simple Springs （tanjyunsen 単純泉） PH3~6 are suitable for all skin
types and may help relieve fatigue and insomnia.
Mildly Alkaline Simple Springs （tanjyunsen arukari-sei 単純泉アルカリ性） PH
7.5~8.5, suitable for all skin types and said to smooth the skin.
Sulphur Springs （iousen 硫黄泉） give oﬀ a characteristic smell and are often
cloudy or milky, useful in the treatment of acne and skin complaints.
Hydrogen Carbonate Springs （tansansuisoensen 炭酸水素塩泉） are refreshing and
said to soothe burns and help heal scars.
Chloride Springs （enkabutsusen 塩化物泉） and
Sulphate Springs （ryusannensen 硫酸塩泉） are both saline springs which help
the body to retain heat and the skin to retain moisture.
Ferruginous （iron） Springs （gantetsusen 含鉄泉） said to help treat anemia,
rheumatism and excema.
Acidic Springs （sanseisen 酸性泉） PH2~3 have a powerful antibacterial quality
and although they may be used to treat athlete's foot and certain skin diseases
they are not suitable for sensitive skin.
*More detailed information about bathing in Japanese Hot Springs may be found in English, Chinese and Korean on
the Japan Health and Research Institute website: www.jph-ri.or.jp
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