Warm berries overload the shipper
Strawberries should enter the package already chilled. Packing warm fruit leads to fast condensation and a short holding time.
Strawberries Cold Chain
Cold Chain Packout for Pre-Cooled Strawberries in Clamshells
Strawberries need a cold route, but the packout cannot rely on heavy frozen packs alone. The goal is to start with pre-cooled fruit, hold a stable chilled range, protect clamshells from pressure, and keep the pack dry enough for retail acceptance.
0-4 CCommon chilled target after validation
90-95%High humidity need without wet packaging
12-36 HCommon local and overnight delivery window
No freezeAvoid direct contact with hard frozen packs
Product Risk
Why this product needs its own packout logic
The right package has to protect the product’s arrival quality, not only keep the logger cold. The risk points below determine the insulation choice, penempatan cairan pendingin, pre-cooling requirement, dan menerima cek.
Soft fruit shows damage late
Small impacts or top-load pressure can appear as dark marks after delivery.
Leak and condensation trigger rejection
Wet pads, label basah, or sweating clamshells can make a cold shipment look poorly handled.
Blocked vents trap heat and moisture
Gel packs and dividers should not seal clamshell vents or create a cold wet surface against fruit.
Route-Based Recommendation
Choose the packout by product condition, panas sekitar, and delivery time
These are practical starting points for sample planning. Final coolant weight and insulation thickness should be verified with the actual payload, pengirim, rute, dan menerima standar.
| Shipment condition | Recommended Tempk package | Starting coolant direction | Posisi pendingin | Apa yang harus divalidasi |
|---|---|---|---|---|
| Same-day local delivery 8-18jam rute, ambient below 22 C, short dock exposure |
Insulated carton liner or compact EPS shipper, vented clamshells, bantalan penyerap, and rigid outer carton | Tentang 0.4-0.8 kg total conditioned gel packs for a 1-3 kg chilled payload. Use the calculator for actual payload, ukuran kotak, dan profil sekitar. | Side-wall gel pack or top-corner placement with corrugated divider; keep coolant off the clamshell lid. | Arrival fruit temperature, clamshell dryness, berry firmness, leak marks, and remaining coolant state |
| Overnight parcel route 18-36jam rute, ambient 22-30 C, depot and van handling |
EPP or EPS insulated box, tas kapal, lapisan penyerap, fixed clamshell stack, and stronger outer carton | Tentang 0.8-1.5 kg total gel packs or chilled PCM for a small parcel. Increase only after checking cold-spot risk. | Two side positions or side-plus-top with a buffer layer; place logger near the product center or warm side. | Warmest payload point, cold spots near coolant, kondensasi, clamshell pressure, and berry bruising |
| Hot-weather or delay-prone route 30-35 C ambient, 36-48h risk, weekend hold possible |
Thicker EPP/EPS shipper, higher insulation margin, penghalang kelembaban, and route logger | Tentang 1.5-2.5 kg total coolant or a chilled PCM system for a small parcel. Hard frozen bricks need full product buffering. | Perimeter coolant layout with dividers on all product-facing sides; keep weight away from the top of the stack. | Suhu puncak, freeze contact risk, pad wetness, kekuatan karton, and receiving appearance |
Coolant mass is a starting point, bukan jaminan. Adjust by product temperature at packing, berat muatan, clamshell or carton count, Ukuran pengirim, bahan isolasi, pengkondisian cairan pendingin, durasi rute, profil lingkungan, dan menerima cek. More ice can create cold spots, kelembaban, or pressure damage when the product support is wrong.
Kalkulator Paket EsEstimate a starting coolant mass from payload, ukuran kotak, waktu rute, dan suhu sekitar.
Pendingin & PCM ReferenceBandingkan paket es gel, PCM, batu bata es, and conditioning behavior before testing.
Pemeriksa Risiko RuteCheck whether the route needs more insulation, coolant margin, or a shorter shipping window.
Alat Rantai DinginOpen the full Tempk tool set for package, pendingin, rute, and material planning.
Packout Structure
Build the box from the product outward
Untuk menghasilkan, inner pack control is just as important as insulation. Start with the product condition and pack format, then add coolant and insulation around it.
Recommended layer order
1. Pre-cooled fruitPack only after strawberries and clamshells reach the agreed chilled condition.
2. Vented clamshellUse clamshells that support the fruit without blocking airflow or crushing top berries.
3. Bantalan penyerapPlace absorbent material where light condensation or berry moisture is likely to collect.
4. Product spacerReduce stack movement and separate clamshells from coolant pressure.
5. Coolant pocketKeep gel packs on side walls or buffered top corners, not directly against fruit.
6. Pengirim terisolasiSelect EPS, EPP, or an insulated carton by route time, jangkauan sekitar, dan massa muatan.
Proses Pengepakan
Prepare the product before the coolant has to work
A stronger shipper helps, but product temperature, pack stability, and coolant separation usually decide whether the delivery is accepted.
1
Chill product and packaging first
Pre-cool strawberries, kulit kerang, pembalut, and inner packaging so the box is not fighting avoidable heat load.
2
Condition coolant for the lane
Choose gel packs or PCM by route target. Avoid hard frozen contact unless a divider has been tested.
3
Pack tight but not compressed
Isi ruang kosong, keep clamshells level, and prevent gel packs from pressing into the fruit stack.
4
Inspect the received pack
Check temperature, ketegasan, memar, bocor, pad wetness, clamshell condition, dan kekuatan karton.
When to Change the Design
Arrival signals that point to the next adjustment
If berries arrive cold but wet
Keep the thermal target, then improve absorbent material, desain kapal, vent clearance, or coolant conditioning.
If berries bruise or leak
Reduce stack pressure, tambahkan pembagi, membatasi ruang kepala, and keep coolant weight off clamshells.
If the product warms too early
Increase insulation margin, use a larger shipper-to-payload ratio, adjust coolant mass, or shorten the shipping window.
Related Resources
Use these pages when finalizing the sample request
Buah & Vegetables Cold Chain SolutionsReturn to the category route and compare produce products.Blueberries Cold Chain SolutionCompare a smaller berry with bloom and venting concerns.Avocados Cold Chain SolutionCompare ripeness-sensitive produce routes.
Paket Es GelReview coolant options for chilled fresh produce lanes.
Kotak Terisolasi EPPUse for reusable or higher-protection produce routes.
Kotak Karton IsolasiUse for lighter parcel programs and lower-weight fresh produce shipments.
Insulation Material ReferenceCompare insulation options before route testing.
Hubungi TempkSend route time, kondisi produk, jumlah muatan, and package size for packout support.
Need this packout tested for your route?
Share berry temperature at packing, clamshell size, berat muatan, durasi rute, jangkauan sekitar, dan menerima cek. Tempk dapat membantu memilih isolasi, gel pack layout, dan langkah validasi.
Minta peninjauan paket