How the temperature requirement for hard ice cream?

Normally, the ice cream out from machine (ice cream batch freezer) is about -6 degrees to -8 degrees.

The best temperature for hard ice cream / gelato is about -18 degrees.

Use one unit blast freezer for fast freezing ice cream. It can let the ice cream fast reach to target temperature to prevent crystallization.

And the final step is storage ice cream in the display freezer, about -16 to -20 degrees.

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