Portable Blast Freezer

• Rapid chilling and freezing of prepared meals and baked goods in catering and food production.
• Quick preservation of fresh produce, meats, and seafood to maintain quality and extend shelf life.
• Temperature-controlled storage for pharmaceuticals and other heat-sensitive products requiring precise conditions.
• Batch freezing for small to medium-scale food processing operations, offering flexibility and mobility.

Typical capacity

For this class of portable equipment, capacities commonly range from 4 to 10 standard pallet positions, or internal volumes of 10 to 30 cubic metres.

Power supply

Units of this type typically require a 400V, 3-phase electrical supply, often with a 32A or 63A connection.

Temperature range

Blast freezers are designed to achieve temperatures as low as -35°C to -40°C, suitable for rapid freezing.

Refrigerant type

Modern units commonly use HFC refrigerants such as R404A or R449A, though older models may use different types.

Footprint

A portable blast freezer with double doors typically has external dimensions ranging from 6m to 12m in length, and 2.5m to 3m in width and height.

Construction material

The internal and external panels are commonly constructed from insulated steel, often with a food-grade finish internally.

• What is the typical freezing time for a portable blast freezer?

  Freezing times vary significantly based on product type, size, and initial temperature, but these units are designed to rapidly reduce product core temperatures, often within 4-24 hours.

• Does a portable blast freezer require special installation?

• What maintenance is typically required for a unit with a built-in compressor pack?

• Can this unit be used for chilling as well as freezing?

• What are the benefits of a double-door configuration?

Blast freezers hold strong reputations for reliable performance in food processing operations. Buyers typically prioritise units with sturdy construction and consistent temperature control, as these directly affect product quality and shelf life. When purchasing used equipment, inspecting refrigeration systems, door seals and internal surfaces for wear is essential. Industry sentiment favours models from established manufacturers known for durability. Key strengths include rapid freezing capability, energy efficiency compared to older freezing methods, and adaptability to various food types. Proper maintenance history significantly influences buyer confidence in used units.

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