A system and method for carbonating a beverage is shown. The system includes a saturation tank having a gas head space of CO.sub.2, a carbonation tank, and a beverage supply system to pass the beverage between the saturation tank and the carbonation tank. A beverage supersaturated with CO.sub.2 from the head space is formed in the saturation tank. The supersaturated beverage is passed from the saturation tank to the carbonation tank. Once the amount of CO.sub.2 added to the beverage exceeds saturation, some of the CO.sub.2 escapes from solution from the beverage and the pressure in the carbonation tank increases. Once the pressure within the carbonation tank reaches a pre-defined pressure for the desired volume CO.sub.2/volume beverage, a pump supplying the beverage to the saturation tank is shut-off and the inlet and outlet valves of the carbonation tank are closed.
Biological and Agricultural Engineering
US 20160304820 A1
Board of Trustees of the University of Arkansas (Little Rock, AR)
Osborn, Gregory S., "Method for improved rate and control of beverage carbonation with automatic shut-off" (2018). Patents Granted. 343.