High-precision carbonation

Step three of beverage preparation consists of treating the product with CO₂ before it is transferred to the filler. Carbonation means dissolving CO₂ in the beverage. Other gases may be used as well, depending on the individual case. For example, O₂ is currently added to a mineral water, or N₂O (laughing gas) to a coffee drink. The CO₂ contents differ depending on the beverage. They range between approximately 4.2 g/l for mineral water and 14 g/l for sparkling wine. In the carbonation tank, an injector system adds CO₂ to the mixed beverage. The CO₂ remains dissolved in the beverage in the pressurised container. To achieve optimal filler performance, the beverage should be transferred to the filler without air bubbles.
CO₂ is added to the finished product through a control valve. It is measured with a highly accurate mass flow meter. The CO₂ injector is connected to a circulation pipe so that there is a constant flow through the injector. CO₂ is only added if product is discharged into the buffer tank.