The pH value of most natural mineral waters is not between 6 and 6.5, and they are generally slightly alkaline, with the standard range mostly between 7.0 and 8.5.
Natural mineral water is uncontaminated groundwater that naturally flows from deep underground or is collected through artificial drilling. During its long geological cycle, it dissolves various minerals and trace elements, which directly affect the water's acidity or alkalinity, making the vast majority of natural mineral waters slightly alkaline. A pH value between 6 and 6.5 falls into the slightly acidic range and does not conform to the typical pH value of natural mineral waters.
