Water Deaerating Systems
GEA VARIDOX-C cold water deaeration system
Oxygen in beer or beverages may increase product perishability and spoil taste, so using optimally deaerated water for beverage manufacture and for the redilution of beer can have an impact on final quality. The GEA VARIDOX-C cold water deaeration system achieves very low residual oxygen levels, and can be used for different applications.
Deaeration of beverage water
The water is sprayed in the deaeration column and it slowly trickles down the packed columns. At the column outlet the water is saturated with CO2 (N2). If the water is to be used for blending a carbonated product, a precarbonation option is available, configured with a second, separate CO2 line that feeds CO2 to the deaerated water (after the deaeration column).
The system includes probes for flow rate, water or CIP media levels, and, optionally, for oxygen. These sensors monitor the system and how it is functioning. The product line and column are cleaned directly by an efficient CIP system.
Features
- Low residual oxygen content: <0.03 mg/l (30 ppb)
- Residual oxygen content of: <0.02 mg/l (20 ppb) and <0.01 mg/l (10 ppb), achievable, dependent on configured column height
- Low CO2 consumption
- Low operating costs, when compared with technology for deaeration under vacuum
- Short installation time (the unit is pre-assembled)
- Low maintenance costs
- Can be supplied for flow rates between 20 hl/h and 1,000 hl/h
Technical data
- Water inlet pressure: 2 bar
- Water temperature: >10°C
- Control air pressure: 6-8 bar
- Materials: 1.4301 / EPDM
- CO2 admission pressure: 6-8 bar
- CO2 consumption: 0.3–0.8 g/l
- CO2 included in the water: 1.7–2.2 g/l
- CO2 supply: 2–3 g/l
- CO2 quality: >99.998% purity
Downloads
Related Products
GEA VARIDOX-H for Hot Water Deaeration System
GEA has developed the VARIDOX deaeration systems for use by the beverage and brewery industries. For hot deaeration we recommend the VARIDOX-H.
GEA DIMIX-B Mixer/Carbonator
The GEA carbonating system type DIMIX-B has been designed for high-precision continuous mixing and carbonation of beer and beer mix beverages.
GEA Insights
Arla cuts spray dryer CO₂ with GEA AddCool® system
GEA AddCool® installation cuts CO2 emissions associated with the operation of a spray dryer plant by 1,500 tons per year at Arla’s milk powder factory in Svenstrup, Denmark.
GEA rings opening bell, celebrating DAX debut
On Sept. 30, 2025, GEA rang the opening bell at the Frankfurt Stock Exchange, a symbolic moment that highlighted the company’s inclusion in Germany’s leading stock index, the DAX.
A headquarters with people and purpose at its core
GEA’s new corporate headquarters in the up-and-coming Derendorf neighborhood of Düsseldorf, Germany, brings together people, ideas and expertise under one roof. With its open spaces, green terraces and energy-efficient design, the building reflects the company’s commitment to collaboration and sustainability.
