Blast Freezers also known as shock freezers is a freezer which is extremely cold. The concept behind shock freezers is to rapidly bring down the temperature of food products or fresh produce in order to drastically reduce the metabolic processes.These are mostly used in the meat, dairy and food industry. Commercial kitchens also use blast freezers for cold storage.
Almost all blast freezers placeuse blower fans that throw cold air across the material which is to be frozen, this causes rapid chilling. Blast freezers are of different design and functionality and some are provided with trays or pallets that can be adjusted, enabling users to foods into various compartments for quick freezing.A blast freezer can normally handle foods at ambient temperature or even hot food provided the capacity of the freezer is not exceeded beyond recommended range. The inclusion of very hot food would eventually increase the temperature of the blast freezer - that will adversely affect the efficiency of rapid freezing.