Chaîne du Froid Produits de la Mer — IQF, Blast & Export
Tunnels IQF, blast freezers et stockage à −25 °C pour exportateurs de crevettes, saumon et poissons blancs — capacité, fluide et HACCP/BRCGS.
From reading to a project decision
- Who this helps
- Owners, developers and procurement teams considering Seafood & Aquaculture Cold Chain — IQF, Blast & Export Guide.
- Decision supported
- Define product duty, site constraints and comparable scope before selecting equipment or requesting proposals.
- Review status
- A dated technical review is not recorded for every legacy guide. Confirm current product specifications and local requirements with the responsible specialists; no fresh review is implied.
- Free access
- Read, calculate and use checklists without an account, payment or lead submission. Requesting procurement support is optional.
Sizing, temperature and energy checklist
- Record product, packaging, incoming/target temperatures, humidity and permitted excursions from your product specification.
- Record peak stock, daily intake, dwell time, loading schedule and seasonal peaks from your own operating records.
- Confirm grid connection, usable site area, ambient conditions, water and transport interfaces.
- Use declared operating hours, load, tariff and system efficiency; preserve assumptions when comparing scenarios.
- Have the refrigeration engineer and responsible food/pharma quality lead verify the scope before equipment selection.
Destination, season & logistics checklist
A project evidence checklist, not a seasonal forecast. Complete it for each destination using dated operating records, product specifications and responsible local specialists.
- Destination & handoffs
- Record origin, destination, transport mode, loading/unloading points, planned transit and expected waiting time. Identify who monitors temperature and handles excursions at each handoff.
- Season & peak capacity
- Record actual peak months, daily intake, dispatch, dwell time and highest stock from dated records. Label forecasts separately; do not turn an annual national trade indicator into a monthly demand estimate.
- Temperature & energy duty
- Use the product's approved temperature range, incoming temperature, packaging and loading schedule. Record site ambient assumptions, door-opening frequency, power availability and tariff period for capacity and energy comparisons.
- Site & unresolved risks
- Confirm grid, water where required, vehicle access and dock interfaces. Record the evidence owner, source date and unresolved constraint; leave unknown inputs blank rather than presenting them as verified.
Related source material: FAO post-harvest handling manual for food handling context; existing distribution planning guide and site due diligence checklist. This checklist does not establish a food/pharma specification, legal approval or engineered capacity.
Reference library, not verification of every legacy claim: FAO post-harvest management · WHO pharmaceutical temperature mapping, May 2015 · Official regulatory sources. Calculators are preliminary scenarios, not engineering certification or guaranteed results.
Blast vs IQF vs plate
Whole fish / large blocks: plate freezers (fastest heat transfer). Shrimp, individual fillets, berries: IQF tunnels or spiral freezers (product integrity). Boxed/palletised finished goods: air-blast tunnels. Choose by SKU mix and post-freeze form factor.
Refrigerant selection
Above ~300 kW load, NH₃/CO₂ cascade wins on lifecycle cost and F-gas compliance. Below that, propane (R290) chillers or HFO blends are viable. Avoid R404A for new-build (phased out under EU F-gas and equivalent regulations in most export markets).
Export compliance
EU 853/2004 requires temperature traceability from processing to arrival; BRCGS Storage adds calibrated mapping and mock-recall drills; ASC and MSC add sustainability chain-of-custody. Design monitoring for all three from day one.
Energy & yield
Faster blast = less drip loss (yield uplift of 1.5–3.5% by weight). Heat recovery to processing water can offset 15–25% of hot-water demand. Ice-bank thermal storage improves peak-shaving on constrained grids.
Questions fréquentes
What blast time is realistic for shrimp?
Individual peeled shrimp in a spiral IQF: 12–18 min. Block-frozen 2 kg cartons in an air-blast tunnel: 8–14 hr. Match tunnel size and airflow to actual product form factor, not brochure specs.
Which refrigerant should a new seafood plant use?
For any plant >300 kW cooling load: NH₃/CO₂ cascade. Between 100–300 kW: propane packaged chillers or NH₃ low-charge. Below 100 kW: HFO blends or hydrocarbons. Never R404A for new-build.
Obtenez des devis fournisseurs gratuits
Envoyez un RFQ et recevez des devis présélectionnés d'EPC frigorifiques vérifiés.
- Industry
- seafood
- Temperature
- −25 °C storage / −35 °C blast / −40 °C IQF
- Budget
- €3M – €40M
- Timeline
- 12–18 months
- Equipment
- IQF tunnel, blast freezer, cold storage, ammonia plant
Opens the RFQ builder with fields prefilled from this guide — editable before submission.
Recevoir les lectures ColdMatch
Lectures sur le froid industriel et la chaîne du froid pour les acheteurs qui préparent un projet.
Vous recevrez une synthèse des nouveaux articles, guides du Centre de connaissances et fiches technologiques pour les thèmes choisis : titres, courts résumés et liens. Aucune offre commerciale ni promotion de fournisseurs.