Picture this: A courier sprints through airport security with a life-saving cancer therapy. A researcher collects Arctic ice cores in the Alaskan wilderness. A chef receives Wagyu beef tasting as if it never left Japan. Behind these critical moments stand dry ice freezer packs – portable cryogenic vaults harnessing solid CO₂’s deep-freeze power (-78.5°C) to conquer thermal challenges where traditional cold chains fail.

Why Standard Cooling Fails Ultra-Cold Missions
When biologics demand -70°C stability or perishables face 72-hour transits, conventional solutions crumble:
Gel packs max out at -20°C – useless for mRNA vaccines
Loose dry ice sublimes rapidly (5-8%/hour), risking CO₂ buildup
Active units fail during last-mile deliveries or tarmac delays
Temperature excursions spoil 20% of high-value pharmaceuticals
Dry ice freezer packs solve this by combining controlled sublimation with engineered thermal inertia, transforming volatile cold into predictable precision.
Tempk’s CryoSure™ System: Where Science Meets Reliability
Tempk redefined freezer pack technology through three breakthroughs:
1. Military-Grade Thermal Control
Nano-Aerogel Core: Slows sublimation by 40% vs standard packs
PhaseChange Hybrid Matrix: Absorbs thermal spikes during delays
-80°C for 96+ Hours: Verified in 45°C Dubai trials (±2°C stability)
Helpful decision tools
Check the details before you choose packaging
These quick tools can help you compare route risk, sizing needs, coolant choices, and packaging details before you request a quote.
01Dry ice planningDry Ice Calculator
Estimate dry ice needs for frozen or ultra-cold shipments before packing.
Estimate dry ice02Checklist supportCompliance Checklist Generator
Build a practical checklist for packaging review, shipping, and documentation.
Build checklist03Route riskRoute Risk Checker
Review lane conditions before selecting packaging for real operating requirements.
Check route risk
2. Safety Engineered In
Auto-Venting Design: Releases CO₂ at 1.8 PSI (exceeding IATA UN 1845)
Touch-Safe Surface: Handle at -70°C without gloves
Antimicrobial Liners: FDA-compliant for direct pharma contact
3. Sustainable Cold Chain
Carbon-Captured Ice: Uses industrial CO₂ waste (diverts 15 tons/month)
35% Less Consumption: Patented geometry extends cooling
100+ Reusable Cycles: Outlasts foam shippers 20:1
Real-World Impact: When Cold Saves Lives
| Sector | Challenge | Tempk Result |
|---|---|---|
| Biotech | CAR-T therapy transport | 0.3% failure rate vs industry 14% |
| Vaccines | Rural Africa delivery | 0% spoilage across 412 shipments |
| Seafood | Trans-Pacific tuna | 28% less rejection |
The Future: Intelligent Cold Chains
Tempk’s 2025 IoT-enabled packs will feature:
Sublimation rate prediction
Real-time GPS thermal mapping
Blockchain compliance ledgers

















