The KeyKeg® is designed according the bag-in-ball principle. The pressurized PET ball houses a specially developed flexible inner bag, which contains the beer. The content is dispensed by pressurizing the space between the bag and the ball. No CO2 or air will therefore make contact with the beer.

The ball itself has been designed to withstand the anticipated internal pressures, as well as abusive handling throughout the supply chain. This unique concept is accompanied by a completely new system for filling, logistics and dispensing.