| 摘要 |
Frozen beverages having a desired viscosity (consistency) are produced using a parameter representative of the change between unfrozen and frozen states of the beverage to control cooling of the beverage. The parameter may be the pressure or temperature of the beverage in a freeze cylinder 7 where circulation of coolant to cool the beverage is controlled by a control unit 14 in response to a pressure or temperature sensor 28.
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