Post-Harvest Cooling: Removing Field Heat Before Storage
Shelf life is decided in the hours after harvest. SeedMatchGroup scopes the crop, throughput and packing-line requirement; the pre-cooling and refrigeration equipment package is handled by ColdMatch Group.
What is post-harvest cooling and who supplies the equipment?
Post-harvest cooling is the rapid removal of field heat immediately after harvest — forced-air, hydro or vacuum cooling — before produce enters storage or transport. SeedMatchGroup scopes the crop and throughput requirement and refers the cooling equipment package to ColdMatch Group, the cold chain platform in the Global B2B Group ecosystem.
- Pre-cooling removes field heat in hours; cold storage holds temperature for days or months
- Forced-air suits most fruit and packed vegetables; hydro suits robust produce; vacuum suits leafy crops
- Berries and leafy greens target seven-eighths cooling within 2-6 hours of harvest
- Pull-down peak load is sized separately from holding load
- Commercial project briefs start at USD 250K total project value
Where the handoff happens
SeedMatchGroup defines the agronomic and throughput requirement. Cooling equipment, refrigeration plant and cold chain scope are referred to ColdMatch Group.
What to fix before pricing the cooling package
Cooling quotes only become comparable once these five inputs are stated in the brief.
Tonnes or pallets per hour at harvest peak — sets cooler count and tunnel size.
Field temperature and target pull-down temperature define the duty in kW.
Forced-air, hydro or vacuum — decided by crop, not by preference.
Carton vent area and pallet configuration change forced-air cycle times materially.
Pre-cooling methods compared
Indicative planning comparison used to choose a method before the equipment package is referred to ColdMatch Group.
| Method | Typical cycle time | Best-fit crops | Key constraint |
|---|---|---|---|
| Forced-air tunnel | 1–6 hours | Berries, grapes, stone fruit, packed vegetables | Carton vent area and pallet stacking control performance |
| Hydro-cooling | 10–60 minutes | Carrots, sweetcorn, celery, some stone fruit | Water sanitation and produce water tolerance |
| Vacuum cooling | 20–40 minutes | Lettuce, leafy greens, herbs, mushrooms | High equipment cost; only suits high surface-area crops |
| Room cooling | 12–48 hours | Onions, potatoes, hardy storage crops | Too slow for perishable export produce |
| Package icing | Immediate contact | Broccoli, leafy brassicas | Drainage, weight penalty and packaging compatibility |
Planning ranges for scoping only — final cycle times depend on produce, packaging and plant design.
Procurement questions buyers ask next
- New to the process? Start with what agricultural procurement means, step by step and the documents each stage requires.
- For turnkey awards, learn how to qualify and compare EPC contractors before shortlisting.
- Plant-scale works have their own scope split — see agricultural processing plant EPC contracts for the standard deliverables.
- Sourcing planting material? Request agricultural seed samples for local variety trials before committing to a commercial order.
- Importing equipment or seed? Check the country import and compliance guides for required documents, inspections and realistic clearance timelines.
Frequently asked questions
Post-harvest cooling is the rapid removal of field heat from produce immediately after harvest, before it enters storage or transport. It is distinct from cold storage: pre-cooling pulls product down to target temperature in hours, while cold storage holds it there for days or months. Shelf life is set largely in the first few hours after harvest.
Forced-air cooling is the general-purpose choice for berries, most fruit and packed vegetables. Hydro-cooling suits robust produce tolerant of water contact such as carrots, sweetcorn and some stone fruit. Vacuum cooling suits leafy crops with high surface-area-to-mass ratio, notably lettuce and herbs. Room cooling alone is too slow for anything entering an export cold chain.
SeedMatchGroup scopes the agronomic and packing-line requirement, then refers the refrigeration and pre-cooling equipment package to ColdMatch Group, the specialist cold chain platform within the Global B2B Group ecosystem. Buyers submit one brief and the two platforms coordinate the handoff.
As a working rule, highly perishable produce should reach seven-eighths cooling within hours of harvest — berries and leafy greens within two to six hours, most other fruit and vegetables within 12 to 24 hours. Every hour of delay at field temperature consumes shelf life that no downstream cold room can recover.
Pre-cooling load and holding load must be calculated separately. Pull-down demands a large, short-duration refrigeration peak driven by incoming tonnage and temperature differential, while holding demands a much smaller continuous load. Sizing one plant against average load is the most common cause of packhouses that cannot keep up during harvest peak.
Cost is driven by peak hourly throughput, the temperature differential at the site, the cooling method chosen, and whether the room is retrofitted or purpose-built. Vacuum coolers carry the highest equipment cost per unit but the lowest cycle times; forced-air tunnels are the most common balance of cost and flexibility. ColdMatch Group prices the equipment package once throughput and method are fixed.
Often yes, but the constraint is usually building layout and available refrigeration capacity rather than the cooler itself. Retrofits need space for tunnel or cooler positioning, an airflow path that does not cross dirty intake zones, and plant capacity for the pull-down peak. Assess this before committing to a throughput increase.
Move post-harvest cooling: removing field heat before storage into a structured RFQ
Editorial · not a sales pitchThis page is reference material. When you are ready to convert planning into pricing, a structured RFQ replaces weeks of unstructured email with days of comparable, supplier-neutral offers.
The facts a complete, supplier-neutral request on this topic includes. Use it as a checklist before submitting.
- Peak daily intake (t/day) and required holding capacity (t or pallets)
- Product mix, target storage temperature and relative humidity
- Pre-cooling method needed: forced-air, hydro, vacuum or room cooling
- Packhouse lines required: reception, grading, sizing, packing, palletising
- Building status: new build, retrofit or equipment-only
- Power supply, ambient design conditions and energy cost
- Export markets, certification and traceability requirements
- Building layout or footprint dimensions
- Harvest calendar with weekly volumes
Opens the RFQ Builder scoped as a post-harvest package; refrigeration equipment is handed to ColdMatch Group within the same brief. You stay in control — nothing is submitted until you review and confirm.
Refrigeration plant and cold-room equipment is procured through ColdMatch Group in the same ecosystem — we coordinate the handoff for you.
Free to submit · supplier-neutral · reviewed by a specialist before any supplier is contacted.
What to do next
Most organizations move through these four steps in order. Each one can be started independently, and nothing is shared with suppliers until you approve the scope.
Turn your project scope into one supplier-neutral request qualified manufacturers can price consistently.
Site, water, energy, permits and documentation — the readiness work lenders and EPC contractors expect before quoting.
Debt, leasing, blended and export-credit structures for commercial agriculture CAPEX, assessed alongside the technical scope.
Supplier-neutral guidance on greenhouses, CEA, irrigation, nurseries, packing houses and project finance.
How this guidance is produced
We do not manufacture equipment and do not represent a fixed vendor list. Guidance reflects the project, not a catalogue.
Content is prepared and reviewed by sourcing specialists working on live commercial agriculture projects, supported by proprietary technology.
Practice drawn from greenhouse, CEA, irrigation, nursery, packing-house and processing projects across multiple climates and regulatory environments.
Project details stay private. Nothing is published, listed or shared with suppliers without your approval.
Editorial approach and company background: About SeedMatch Group.
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Send a quick message with your project type, crop and country. A sourcing specialist will review it and confirm the next steps; timing depends on the request and available information.
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Scope a post-harvest cooling package
Share crop, peak throughput and target temperature. SeedMatchGroup scopes the requirement and refers the cooling equipment package to ColdMatch Group.