Run the coolant estimate
Use payload weight, حجم المربع, وقت الطريق, and seasonal temperature before finalizing gel pack or PCM mass.
Tuna steaks are sensitive to warm dwell time, تغيير اللون, نقل الرائحة, and pressure marks. A useful packout keeps the product close to ice temperature, shortens uncontrolled pickup or receiving time, and keeps coolant from touching the steak surface or vacuum pack directly.
The coolant amounts below are starting ranges for planning. Final packout should be validated with the exact payload, insulation size, ممر الناقل, والموسم.
| حالة الطريق | نية درجة الحرارة | Tempk packaging setup | Coolant planning range | موقف المبرد |
|---|---|---|---|---|
| Same-day premium delivery, 8-18 ح | 0-2 ج مبرد | EPP shipper or insulated carton, sealed product bag, طبقة ماصة, حاجز الرائحة. | 0.7-1.3 kg conditioned gel packs or 0 C PCM for 1-3 حمولة كجم. | Perimeter coolant. Keep frozen packs away from the steak face and vacuum seal edges. |
| Overnight route, 18-36 ح | Near-ice route with short dwell | عزل أكثر سمكا, tighter void fill, بطانة التسرب, temperature logger near product. | 1.4-2.4 kg gel packs or PCM for 1-3 حمولة كجم. | Use side plus top coolant separated by board or pouch; prevent pressure dents. |
| Hot lane or remote delivery, 36-48 ح | Validated chilled lane only | Pre-qualified shipper size, reduced headspace, route risk check before launch. | 2.5-4.0 kg gel packs or PCM for 1-3 حمولة كجم. | If validation cannot hold target, upgrade insulation or service level before adding uncontrolled coolant mass. |
For a tighter first estimate, استخدم حاسبة علبة الثلج and then compare coolant families in the سائل التبريد & PCM Reference.
Small layout changes can decide whether the receiver sees a clean chilled seafood parcel or a wet, pressured, partially frozen product.
Keep tuna cold before handoff. A warm staging table can create more risk than the parcel transit itself.
Add a divider between coolant and product, then use void fill that prevents movement without crushing steak edges.
Do not tape the logger to the coolant. The receiver needs to see the environment the tuna experienced.
Check receiving temperature, surface color, رائحة, package leaks, vacuum seal condition, and evidence of coolant contact.
Use these receiving checks when adjusting coolant quantity, سمك العزل, or internal separation.

Use the product page for the packaging logic, then use the tools to size the first trial packout before a lane test.
Use payload weight, حجم المربع, وقت الطريق, and seasonal temperature before finalizing gel pack or PCM mass.
Compare frozen gel packs, عبوات جل مكيفة, و 0 C PCM so the product is cooled without direct freeze injury.
Review lane time, بيك اب يسكن, تأخير الميل الأخير, and receiver process before launch.
Share the seafood form, وزن الحمولة, حجم المربع, مستوى الخدمة, origin temperature, موسم الحارة, ونافذة الاستلام. Tempk can help compare insulation, كتلة المبرد, الموضع, وخطوات التحقق.