Quick answer
For iced or hydrocooled broccoli, compare a moisture-resistant carton and PP corrugated box using the same product, ice load, drains, vents, pallet, dwell time and handling. Choose from measured compression, leakage or drainage, product condition, pallet stability, damage and cost per successful trip—not a generic material promise.
Why broccoli is the hardest crop on a box
Broccoli programs may use top ice, liquid ice or hydrocooling. Define the actual temperature, ice load, water exposure and dwell time, then condition and test the finished box and pallet to those inputs:
- Wet lock boxes (wax-impregnated or wax-cascaded corrugated cartons): the traditional one-way solution.
- PP corrugated plastic boxes (twin-wall polypropylene): evaluate sheet, seams, corners, drains, vents, handling and a controlled return-and-wash loop.
Standard broccoli pack styles and box sizes
| Pack style | Net weight | Recommended box (outer) | Wall | Notes |
|---|---|---|---|---|
| Bunched 14s / 18s with top ice | 21–23 lb + ice | 600 × 400 × 300 mm (23.6 × 15.7 × 11.8 in) | 4 mm, 800–1,000 gsm | Drain slots in base, vent holes in ends |
| Crown cut / short trim | 20 lb | 600 × 400 × 220 mm (23.6 × 15.7 × 8.7 in) | 4 mm | Lower profile, more layers per pallet |
| Florets (bagged) | 4 × 3 lb or 12 lb bulk | 500 × 400 × 280 mm (19.7 × 15.7 × 11.0 in) | 3 mm, 650–750 gsm | Pairs with vented poly or mesh bags |
| Heavy / double-stack cold chain | up to 35 kg | custom to 1,200 mm length | 5 mm, 1,100–1,300 gsm | For processors & export repacking |
600 × 400 mm footprints stack 4 per layer on a 48 × 40 in GMA pallet with full perimeter support.
Wet lock vs PP corrugated: cost per trip
| Waxed wet lock carton | PP corrugated plastic box | |
|---|---|---|
| Unit price | Use the current quote for specified board, treatment, print and volume | Use the current quote for specified wall, joints, print and volume |
| Trips | Define the approved one-way or reuse model | Measure successful trips, damage, loss and retirement criteria |
| Cost per successful trip | Purchase + failure + receiver disposal | Purchase ÷ measured trips + return + wash + loss reserve |
| Wet compression | Test coating, seams and compression after conditioning | Test seams, corners, drains, bulge and pallet stability |
| Top ice / hydrocooling | Validate the complete carton for the chosen exposure | Validate drainage, vents and the complete box for the chosen exposure |
| End of life | Confirm the exact treatment with the receiving OCC program | Confirm construction, cleanliness, collection and a local PP outlet |
| Best-fit hypothesis | Often evaluated for open-loop lanes | Often evaluated where recovery, inspection and washing are controlled |
Local acceptance and route economics vary. Ask the actual receiver and processor what they accept, and run a controlled trial before making a sustainability or cost claim. Use the produce-packaging trial scorecard and the route-cost comparison guide.
What to confirm in a factory quotation
| Item | Detail |
|---|---|
| MOQ | Quote by size, construction, print, material, plant and packing method |
| Samples | State sample type, tooling, cost, approval criteria and dispatch milestone |
| Production | State the capacity assumption and milestone from approved artwork and sample |
| Container load | Calculate from approved flat blank or erected pack dimensions and loading plan |
| Printing | Up to 8-color flexo, PMS matched, both faces |
| Options | Drain slots, vent holes, hand holes, rounded corners, UV package and SKU-specific documents |
| FOB ports | Davao / Manila (Philippines), Haiphong (Vietnam), Shenzhen / Hong Kong (China) |
| Logistics schedule | Quote route, cut-off, production release, port pair and expected transit separately |
U.S. import review: match the SKU to the complete product scope, verify actual plant and production steps, identify producer and exporter, and confirm classification, value and current entry instructions with your customs broker. Use the packaging export-document checklist.
Spec checklist for your RFQ
- Pack style and target weight — 14s/18s bunched with ice, or 20 lb crown cut.
- Wall thickness — 4 mm covers iced broccoli; 5 mm for double-stacking. See the thickness guide (2–10 mm).
- Drainage and venting — base drain slots ≥10 × 30 mm; end-wall vents aligned for forced-air cooling.
- Pallet pattern — 600 × 400 mm footprint, 4 boxes per layer on GMA 48 × 40.
- Print — brand panels + PLU/traceability block; dark inks hide field soil.
- Return logistics — collapsible or nestable designs cut backhaul volume by up to 75%.
Request a broccoli box specification review
Send product form, net load, ice or cooling method, drains, vents, pallet, route and volume. The quotation will identify proposed construction, factory, documents, sample plan and schedule assumptions.
WhatsApp Quote Email jacky@fuxinggroup.cnFAQ: Broccoli shipping boxes
How is end-of-life recovery verified?
Confirm the finished construction, treatment or additives, cleanliness, collection method and acceptance by the receiver's actual local processor.
Can corrugated plastic boxes handle top ice and hydrocooling?
A PP construction can be evaluated for this use. Test the finished box, seams, corners, drains, vents, pallet and compression after representative water and ice exposure.
What size box fits 14-count bunched broccoli?
600 × 400 × 300 mm (23.6 × 15.7 × 11.8 in) handles 14s and 18s with top ice (~21–23 lb plus ice). Crown-cut 20 lb packs cube out better in a 220 mm-high box.
How should we compare cost?
Use current quotes and route data. Include purchase, damage, disposal or return freight, washing, loss and the number of successful trips measured in the trial.
How are MOQ and schedule confirmed?
They depend on size, construction, tooling, material, print, plant, sample type, capacity and destination. Ask for every assumption and milestone in writing.
What should a U.S. importer verify?
Check product scope, classification, actual origin, producer, exporter, value and current entry instructions with a customs broker or adviser.