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TableĀ 10 Different quick freezing techniques (fishery products) [87]

From: A review on mechanisms and commercial aspects of food preservation and processing

Criteria Contact plate freezing Air-blast freezing Cryogenic freezing
Capital cost Low capital investment Economic to construct and operate High capital costs
Operating cost Low operating cost Higher operating cost Higher operating cost
Heat transfer Controlled heat transfer Efficient heat transfer Efficient heat transfer
Product line Generally bulk freezing Flexible Flexible
Required floor space Large Large Small
Refrigeration plant Required Required Not required
Maintenance cost Low Low Minimum
Dehydration loss High High Minimum
Product quality Reasonably good product quality Good product quality Superior product quality
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