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An apparatus for producing a chilled or partially frozen beverage often referred to as a slush beverage. A variety of apparatuses have been designed to produce chilled beverages as well as to produce beverages which are in a "slush" form. Some of these apparatuses are referred to as "granita" machin

An apparatus for producing a chilled or partially frozen beverage often referred to as a slush beverage. A variety of apparatuses have been designed to produce chilled beverages as well as to produce beverages which are in a "slush" form. Some of these apparatuses are referred to as "granita" machines. Such apparatuses can be used to produce slush beverages from a variety of products including fruit juices, coffee-based beverages, tea-based beverages, as well as beverages containing alcohol. Such apparatuses includes a chilling structure, and some form of blade or auger which moves relative to the chilling portion to strip the frozen product off and circulate the beverage along the chilling portion. Circulation of the beverage along the chilling portion helps to reduce the temperature of the beverage mixture thereby approaching a slush consistency.

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1. A beverage coolant system for cooling a beverage mixture in a cold drink system, said beverage coolant system comprising:a heat exchanger for transferring heat from said beverage mixture to a coolant flowing therein; a compressor coupled to said heat exchange for receiving said coolant from said

1. A beverage coolant system for cooling a beverage mixture in a cold drink system, said beverage coolant system comprising:a heat exchanger for transferring heat from said beverage mixture to a coolant flowing therein; a compressor coupled to said heat exchange for receiving said coolant from said heat exchanger once said heat transfer operation has been performed and compressing said received coolant; a valve coupled to a coolant source and said heat exchanger for controlling the supply of coolant to said heat exchanger; and a controller for controllably operating said heat exchanger, said compressor, and said valve to maintain said beverage mixture at a predetermined temperature, said controller being adapted to open said valve automatically for a predetermined time period immediately following completion of a cooling cycle to equalize the coolant system pressure following completion of the cooling cycle and prior to start-up of said cold drink system for the next cooling cycle.