Custom Blast Freezer Room
We design complete blast freezer room solutions around your food type, freezing temperature, batch capacity, product dimensions, and available site space for efficient, uniform freezing.
- Freezing Temperatures from -25°C to -45°C
- Batch or Continuous Freezing
- Custom Room Size and Loading Capacity
- Air-cooled or Water-cooled Systems
- For Food Processing and Cold-chain Projects
How Does a Blast Freezer Room Work?
A blast freezer room uses high-speed cold air to rapidly lower product temperature, reducing large ice crystals and preserving texture, moisture, and quality.
Product Loading
Products are evenly arranged on trays, racks, trolleys, or pallets.
Cold Air Circulation
Fans circulate -25°C to -45°C air through the products.
Rapid Heat Removal
Cold airflow quickly removes heat for faster, uniform freezing.
Temperature Monitoring
Sensors track room and product temperatures until the core reaches about -18°C.
Automatic Control
The system controls cooling, fans, defrosting, alarms, and freezing time.
Freezing Completion
Frozen products are transferred to cold storage.
Parameter | Available Options |
Room Temperature | Approximately -25°C to -45°C |
Product Inlet Temperature | Chilled, fresh, or partially frozen |
Target Core Temperature | Commonly -18°C or project-specific |
Freezing Capacity | Customized by kg/batch or kg/hour |
Insulation Panel | Commonly 100–200 mm |
Panel Material | PUF or PIR |
Door Type | Hinged, sliding, manual, or automatic |
Condensing Method | Air-cooled, water-cooled, or evaporative |
Control System | Manual, PLC, touchscreen, remote monitoring |
Benefits of Our Blast Freezer Rooms
⇆ Uniform Freezing Airflow
- Even airflow through trays, trolleys, and products
- Proper loding prevents uneven freezing
- Fan layout supports efficient air circulation
- Product size and packaging are considered
❄ Energy-efficient Freezing
- Compressors sized to match actual cooling loads
- High-density panels reduce cold loss
- Optimized fans and defrost cycles save energy
- Variable-frequency control improves efficiency
⚙️ Manufacturing and Quality Control
- Insulation and sealing inspection
- Refrigeration pipe pressure testing
- Electrical and sensor checks
- Full trial operation before delivery
🛠 Installation and Technical Support
- Layout and installation drawings
- Piping and electrical guidance
- System commissioning and training
- Spare parts and remote troubleshooting
Integration with Production Lines
We integrate blast freezer rooms into existing food processing lines, connecting conveyors, trolleys, racks, packaging machines, and cold storage for efficient freezing and product transfer.
Slaughterhouses
Integrated after cutting, deboning, or packaging lines to rapidly freeze meat and poultry before cold storage or distribution.
Seafood Processing Plants
Connected with washing, grading, filleting, glazing, and packaging equipment for fast freezing of fish, shrimp, shellfish, and other seafood.
Prepared Food Factories
Installed after cooking, cooling, portioning, or packing processes to freeze ready meals, meat products, and processed foods.
What Products Can We Blast Freeze?
Meat and Poultry
Suitable for beef, pork, chicken, lamb, sausages, and portioned meat. Typical blast freezing temperatures range from -30°C to -40°C.
Fish and Seafood
Used for fish fillets, shrimp, shellfish, squid, and packaged seafood. Temperatures of approximately -35°C to -45°C support faster freezing and reduced moisture loss.
Prepared Foods
Suitable for ready meals, cooked meat, dumplings, pizza, sauces, and processed foods. Common freezing temperatures range from -30°C to -40°C.
Bakery Products
Used for dough, bread, cakes, pastries, and frozen bakery products. Typical temperatures range from -25°C to -35°C.
Fruits and Vegetables
Suitable for berries, sliced fruit, corn, peas, vegetables, and preprocessed produce. Common blast freezing temperatures range from -30°C to -40°C.
Ice Cream and Dairy Products
Used for ice cream hardening, frozen desserts, butter, and selected dairy products. Typical temperatures range from -35°C to -45°C.
Our Project: Blast Freezer Room Project in South Africa
A frozen food processor in Johannesburg, South Africa, needed a reliable industrial blast freezer room for poultry and prepared meat products. The customer required faster freezing, uniform product temperature, and stable operation during hot summer conditions.
We supplied a 6.5 × 4.5 × 3.2 m blast freezer room with 150 mm PIR insulation panels, a low-temperature air cooler, and a high-efficiency refrigeration unit. The system was designed for a 2,000 kg batch capacity, reducing product temperature from +8°C to a core temperature of -18°C within approximately 7 hours.
The room operates at -35°C, with four trolley loading zones and optimized airflow channels. After commissioning, freezing time was reduced by about 30%, while average power consumption decreased by approximately 15% compared with the customer’s previous system.
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FAQ
What temperature is used in a blast freezer room?
Most blast freezer rooms operate at approximately -25°C to -45°C. The exact temperature depends on the food type, product thickness, inlet temperature, packaging, loading capacity, and required freezing time.
What is the typical product core temperature after freezing?
For many frozen foods, the target core temperature is around -18°C. Some products may require a lower or project-specific temperature based on storage, transportation, or processing requirements.
What Is the Typical Blast Freezing Time?
Freezing may take under an hour or several hours. Smaller products such as shrimp, fillets, or pastries freeze faster than large meat blocks, palletized products, or densely packed cartons.
How does a blast freezer differ from cold storage?
A blast freezer uses high-speed, low-temperature airflow to reduce product temperature quickly. A cold storage room is mainly designed to maintain already frozen products at a stable temperature for long-term storage.
How is blast freezer capacity calculated?
Capacity is calculated based on product weight per batch or per hour, inlet temperature, target core temperature, product dimensions, packaging, freezing time, and room operating conditions. Refrigeration load should be calculated specifically for each project.
What insulation thickness is recommended?
Blast freezer rooms commonly use 100–200 mm insulated panels. The required thickness depends on the operating temperature, local climate, room size, energy-efficiency target, and installation environment.
Can an existing cold room be converted into a blast freezer?
In some cases, an existing cold room can be upgraded, but the insulation, refrigeration capacity, airflow, door structure, floor, and electrical system must first be evaluated. A standard cold room may not support the high cooling load required for rapid freezing.
Can the blast freezer operate continuously?
Yes. Both batch and continuous systems are available. Batch rooms are suitable for trolley or pallet loading, while continuous systems can be connected with conveyors for higher production volumes.