PyroBubbles® are water-neutral and food-safe. They contain only very few water-soluble components. The ph-value ranges between values of 7 and 9 (maximum permissible limits according to the drinking water regulation 6.5 – 9.5). This value corresponds to a soap solution for normal hand washing and can thus be considered neutral. The totality of the soluble salts has considerably less effect on the conductivity of water than the normal mineral content of tap water. Conductivity < 150 μS/cm (permissible limit according to the drinking water regulation 1500 μS/cm).