Estimate coolant mass
Use payload weight, route time, box size, and seasonal ambient temperature before ordering the first test packout.
Chicken breast packaging must control chilled temperature and raw poultry leakage at the same time. A useful packout holds the product at 0-4 C, keeps coolant separated from the primary pack, and adds enough liner and absorbent capacity to protect cartons and nearby items.
The coolant amounts below are starting ranges for planning. Final packout should be validated with the exact payload, box size, carrier lane, and season.
| Route condition | Temperature intent | Tempk packaging setup | Coolant planning range | Coolant position |
|---|---|---|---|---|
| Local or same-day poultry route, 8-18 h | 0-4 C chilled | Primary sealed pack, secondary liner, absorbent pad, EPP or insulated carton. | 0.8-1.4 kg conditioned gel packs or 0 C PCM for 1-4 kg payload. | Side coolant with divider; do not let meltwater or condensation reach poultry packs. |
| Overnight parcel, 18-36 h | 0-4 C with low warm dwell | Thicker insulation, double leak barrier, absorbent base, logger in product air space. | 1.4-2.6 kg gel packs or PCM for 1-4 kg payload. | Top and side coolant separated by board or pouch; protect the liner from puncture. |
| Hot route or delay risk, 36-48 h | Validated chilled route | Higher insulation, reduced headspace, stronger secondary containment, faster carrier service when possible. | 2.6-4.2 kg gel packs or PCM for 1-4 kg payload. | If carton wet-out appears, upgrade liner and absorbent structure before adding coolant. |
For a tighter first estimate, use the Ice Pack Calculator. If the route is frozen, compare with the Dry Ice Calculator before testing.
The right sequence reduces warm dwell, leakage, coolant contact, and pack damage before the box reaches the receiver.
The packout should hold temperature, not pull down warm raw poultry after packing.
Use the primary product pack plus a secondary food-safe liner with absorbent material sized for expected purge.
Keep gel packs or PCM around the chamber with a divider so raw packs are not crushed or wetted.
Record product temperature, leakage, carton dryness, odor, liner puncture, and whether coolant shifted during transit.
Use these receiving checks when deciding whether to adjust coolant mass, liner structure, or insulation thickness.

Use the product page for the handling logic, then size the first trial with tools and validate the real route.
Use payload weight, route time, box size, and seasonal ambient temperature before ordering the first test packout.
Compare conditioned gel packs, 0 C PCM, and frozen-route dry ice logic before changing insulation size.
Review pickup dwell, last-mile delay, receiving window, and season before launching a meat route.
Share the product form, chilled or frozen target, payload weight, box size, route duration, season, and receiving checks. Tempk can help choose insulation, coolant mass, liner structure, and validation steps.