The word "sour" means the natural sparkling of the spring

At first, chemists imagined that Bílinská kyselka contains oxygen, then this idea was refined to carbonic acid and today we already know that it is a mixture of natural, water-soluble gases, the majority of which is carbon dioxide.
U Bílinské kyselky there is a rare combination of naturally alkaline healing water with true acidity. Bílinská kyselka it has been combining the properties of a natural healing source and table sparkling water for centuries.

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Basalt rocks in contact with permeable gneiss

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Mineralized fissure water heated by volcanic activity

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Output of water gasified with CO2

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Cold fissure water saturated with oxygen

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Borehole BJ6 Bílina with a depth of 198 m

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Fracture systems extending to the surface

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Clay impermeable layers sealing gneiss layers

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Drainage circuits diverting surface water from the spring

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Spring in the spa park

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Complex of bottling plant buildings Bílinská kyselka