Method and apparatus for entraining gas in ice cream mix

摘要

An overrun-producing gas such as nitrous oxide is introduced into a lower portion of a tank containing unfrozen ice cream mix at elevated pressure, until sufficient gas is entrained in the ice cream mix to provide the desired overrun. The gas may be collected at an upper portion of the tank and recirculated back into the lower portion of the tank. Pressurized air may also be introduced through the top of the tank while the gas-entrained contents are dispensed into pressurized containers, to maintain a predetermined pressure thereon.