Blast Freezing Facility Procurement
How a blast freezing facility is scoped and tendered: freezing method, plant capacity, envelope, handling and controls packages, tender sequence, risks and financing routes.
Blast freezing is specified by freezing curve, not by room size. Product type, entry temperature, core temperature target and batch or continuous throughput decide the freezing method, the plant capacity and the airflow design — and those decide almost everything else in the tender. This profile describes how a blast freezing scope is split into tenderable packages and what has to be defined before an RFQ is issued.
This is an anonymized scope profile describing how projects of this type are structured and procured — not a client case study. Figures are scope bands, not quotations.
How the scope splits into tenderable packages
Freezing equipment
Blast cells, tunnel, spiral or IQF line sized to the freezing curve and hourly product throughput.
Refrigeration plant
Low-temperature compressor selection (ammonia, CO₂ cascade, HFC/HFO), condensers, evaporators, hot-gas or electric defrost strategy and redundancy level.
Insulated envelope
Freezer-grade panels, underfloor heating against frost heave, vapour barrier, doors and air locks.
Product handling
Trolleys, racks, conveyors or loading systems, and the interface into frozen storage or dispatch.
Controls and validation
PLC/SCADA, core-temperature probes, batch records for food-safety audit, alarms and remote monitoring.
Installation and commissioning
Site interface, pull-down and freezing-curve verification with real product, operator training and spares list.
Procurement sequence
1. Define the freezing curve
Product, packaging format, entry temperature, target core temperature and the permitted freezing time — this is the specification everything else derives from.
2. Fix hourly throughput and batch pattern
Kilograms per hour at peak season, not annual tonnage, determines plant capacity and whether batch cells or a continuous line is correct.
3. Choose the method before the supplier
Blast cells, tunnel, spiral and IQF suit different products and labour models; deciding late makes bids non-comparable.
4. Split into packages
Freezing equipment, refrigeration plant, envelope, handling and controls are tendered separately with a defined interface matrix.
5. Compare on energy per tonne frozen
Normalise bids for kWh per tonne at stated design conditions, defrost losses, dehydration weight loss and warranty terms.
6. Route to financing
Where eligible, the equipment package is matched to export credit, leasing or development-bank cold-chain routes before signature.
Risks and controls
| Risk | Control |
|---|---|
| Freezing time missed at peak season | Specify the design product and peak hourly load in the RFQ, and require a guaranteed freezing curve. |
| Product dehydration and weight loss | Require stated weight-loss performance at the design airflow and packaging format. |
| Frost heave under the freezer floor | Include underfloor heating or ventilated slab in the envelope scope, not as a site-works assumption. |
| Defrost strategy eroding capacity | Require defrost frequency and duration in the capacity calculation, not just nominal plant output. |
Financing routes commonly assessed
- Export credit agency cover where freezing equipment originates from an ECA-supported country
- Equipment leasing for refrigeration plant and freezing lines
- Development-bank lines for cold-chain and post-harvest loss reduction
- Vendor and trade finance on the supply contract
Eligibility depends on jurisdiction, equipment origin and sponsor profile. Financing Center
Questions buyers ask
What decides blast freezing capacity?
The freezing curve and peak hourly throughput. Product type, packaging, entry temperature, the −18 °C core target and the permitted freezing time set the required refrigeration duty and airflow — floor area follows from that, not the other way round.
Blast cells, tunnel or IQF — how is the method chosen?
By product format and labour model. Cartoned and palletised product usually suits batch blast cells or a tunnel; loose, individually frozen pieces need a spiral or fluidised-bed IQF line with continuous handling.
How should blast freezing bids be compared?
On energy per tonne frozen at design conditions, guaranteed freezing time, product weight loss, defrost impact on effective capacity, service coverage in-country, and warranty and payment terms — not on headline equipment price.
Delivered with ColdMatch Group
Send one brief. We convert it into a structured RFQ, qualify manufacturers against your technical specification and return comparable quotes with delivery, warranty and payment terms side by side.