To get the most out of your brine chiller, the operating
brine temperature should be set at approximately 10° F (5.5° C)
below the target endpoint temperature for your product. For
example, if you want your product to be chilled to a 35° F (2°
C) endpoint, then your brine solution should be running at 25° F
(-3.5° C) or colder and your brine solution should be mixed to a
freezing point of 20° F (-6.5° C).
There are some exceptions. Some products like turkey breast
are sensitive to crust freezing. Turkey breast generally freezes
at 26° to 28° F (-3° to -2° C), so to prevent crust freezing,
your brine operating temperature should be 25° F (-4° C) or
warmer. Another exception is skinless viennas. Typical endpoint
temperatures for viennas are 28° to 30° F (-2° to -1° C), but if
the brine operating temperature is set at 20° to 22° F(-7° to
-5° C) it will sometimes over-chill the product surface and
cause peeling problems. For this reason, viennas are typically
chilled to 28° to 30° F (-2 to -1° C) using 24° to 26° F (-4° to
-3° C) brine.
Depending on the product being chilled, brine chillers are
typically operated at 14° to 25°F(-10° to -4°C). As a practical
matter, the coldest realistic brine operating temperature is 8°
- 10°F (-13°to -12° C). Any colder and it is difficult to keep
the salt in solution.