Rapid freezing concept
High-velocity, very cold air is forced past the product so the core temperature falls quickly through the critical zone where ice crystals form.
Air temperature vs product core temperature
Air temperature inside a blast freezer is much lower than the target product core temperature; freezing is complete when product core reaches the target, not when air does.
Batch size, thickness, inlet & target temperature
- Batch size: kg per cycle.
- Product thickness: thicker products freeze slower.
- Inlet temperature: warmer product needs longer cycles.
- Target core temperature: typically deep frozen.
Trolley / rack loading
Air must reach all surfaces. Trolley and rack design is part of the blast freezer design.
Freezing time disclaimer
Freezing time is product, thickness and load specific — Subject to confirmation after site inspection and test runs.
Frequently Asked Questions
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