The mineral spring in Sofia's Gorna Banya district has been known since the Thracians. The first study and description of this water was made as early as 1887. Subsequent analyses show that it has a constant physico-chemical composition and is microbiologically clean. This is due to its depth (more than 600 meters deep, which excludes any external pollution and adverse weather conditions) and the absence of ingredients that change over time.
Experimental studies with mineral water “Gorna Banya” have shown that after its artificial contamination with some bacteria, for a period of 10 days it suppresses their development and has a “purifying” effect.
Clear, colourless and odourless, natural clean and with excellent chemical composition, mineral water "Gorna Banya" undoubtedly has a beneficial effect on human health and is at the forefront of the mineral waters in Europe. Low total mineralization - 143 mg / l and the appropriate content of sodium (Na) - 33,27 mg / l, determined favorable its effect in the gastrointestinal, renal and urologic, hepatobiliary and other diseases. Due to its low fluorine content (F) - 0.13 ml / l, mineral water "Gorna Banya" is recommended for daily use by children and adults.