Air Temperature
The air temperature is the temperature of the cavity where the product is being chilled.
The range for a Blast Chilling process is from -13°F (-25°C) to 48°F (9°C) degrees
and Hold from 14°F (-10°C) to 50°F (10°C).
Time or Temperature based Cycles
Blast Chilling can be performed by using the Automatic mode (selecting the food
icons) or by a Manual mode. Depending on the type of mode and options selected, which
will be explained later in this chapter, you can choose to chill by Time and
Temperature, or by using the Product Probe to chill to a set core temperature. If the
Time and Temperature mode is selected, then the Blast Chilling cycle will terminate
when the time has elapsed. In this case, the product may or may not reach the desired
core temperature as required by the HACCP regulations. In the Product Probe mode,
Blast Chilling will be controlled by the Product Probe and may take more or less time,
depending on the product weight, density, thickness, starting temperature and so on to
reach the set core temperature. In either mode, once the time has elapsed or the food
probe temperature is reached, the equipment will then switch to the Hold mode
automatically and maintain the product at the storage temperature. Users can chill by
Time and Temperature when the product core temperature is not critical and the pre-
selected time will determine the end of the cycle instead. Otherwise they should select the
Product Probe based cycle when they want to ensure that the product core temperature
before going into the Hold mode, matches with HACCP guidelines of 38°F (3°C).
Automatic Defrost
The evaporator will Defrost automatically between chilling and hold and will terminate
after 10 minutes or when the evaporator sensor reaches 41°F.
Blast Chilling Cycle Activation
When the Blast Chilling mode is selected, the machine will automatically Pre-chill the
cabinet to 23°F (-5°C). Once it reaches the pre-chill temperature, then either a manual
cycle or a programmed recipe can be started. To start a Blast Chilling cycle, form the
Home screen, press the Chilling icon.
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