CO2 in beverages

The CarboQC portable CO2 measuring instrument from Anton Paar is suitable for quality control on bottles and cans and for spot checks from tanks and the production line. It determines the CO2 content of soft drinks, beer, sparkling wine and mineral water.

The instrument works according to the 'Multiple Volume Expansion Method', making use of the fact that the solubility of air in beverages is much lower than that of CO2. Therefore, when expanding the volume of the measuring chamber, the partial pressure of air decreases much more than that of CO2. This method completely eliminates the influence of the partial pressures of other dissolved gases on the measured total pressure and therefore enables a rapid and accurate measurement of the CO2 content. The instrument is drift-free and independent of air pressure changes, sample temperature and sample flow.

The CarboQC is delivered factory-adjusted and can be used straight away to determine the CO2 content of beverage from tanks or the production line. Combined with the PFD filling device the CarboQC can measure drink samples from cans, glass or PET bottles.