Lors de l'expédition de marchandises sensibles à la température, dry ice is often the go-to cooling solution. Mais how long do dry ice packs last? Is it 24, 48, ou 72 heures? The answer depends on several variables like the amount of dry ice used, the quality of insulation, and the environmental conditions during transit. Dans ce guide, we’ll break down the factors that influence dry ice lifespan, give you best practices to optimize its duration, and help you decide when dry ice is the right choice for your shipment.
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What factors determine whether a dry ice pack lasts 24, 48, ou 72 heures?
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How much dry ice should you use, and how does insulation affect its longevity?
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When should you consider using gel packs or phase change materials (PCMS) instead of dry ice?
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Quoi 2025 regulations and safety rules apply to dry ice shipments?
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How do new technologies extend dry ice hold times?
What Affects the Duration of Dry Ice Packs?
Why Does Dry Ice Duration Vary So Much?
Glace sèche sublimate (se transforme du solide en gaz) à -78,5 ° C. Several factors control the sublimation rate:
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Quantité de glace sèche: More dry ice equals longer cooling durations. En général, 5–10 pounds of dry ice sublimate every 24 hours under standard conditions.
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Packaging and Insulation: Well-insulated containers slow down the heat transfer into the box, empêchant une sublimation rapide.
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Température ambiante: Les climats plus chauds font que la glace sèche sublime plus rapidement. If the shipping route passes through warm areas, more dry ice and better insulation are required.
Estimated Durations Based on Conditions:
| Quantité de glace sèche | Estimated Duration |
|---|---|
| 5–10 lbs | Jusqu'à 24 heures |
| 8–10 lbs | Jusqu'à 48 heures |
| 10–15 lbs | Jusqu'à 72 heures |
Pour la pointe: Always plan for a buffer—add 10-25% more dry ice to cover unexpected delays or temperature fluctuations.
How Much Dry Ice Is Required?
How Do You Calculate Dry Ice Needs?
To determine how much dry ice you’ll need, consider the following guidelines:
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For 24-Hour Shipments: 5-10 Des livres de glace sèche devraient suffire.
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For 48-Hour Shipments: Double the amount of dry ice (10-20 livres).
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For 72-Hour Shipments: Plan for 20-30 livres de glace sèche, especially if shipping in warmer climates.
The Role of Packaging and Insulation
Packaging Types for Dry Ice:
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Standard Dry Ice Bags: Good for short shipments (24-48 heures) but may not provide long-lasting cooling.
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Foil-Lined Bags: Provide better insulation for longer trips (48-72 heures).
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Boîtes isolées: Ideal for shipments requiring temperature control over extended periods, such as pharmaceutical products.
Conseil: Always choose the right packaging for your shipment’s duration and temperature requirements.
Should You Switch to Gel Packs or PCMs?
While dry ice is ideal for freezing temperatures, alternative solutions like gel packs and phase change materials (PCMS) are becoming increasingly popular.
When to Use Alternatives:
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Packs de gel: Best for products that need to remain cool (2-8°C) mais pas gelé.
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PCMS: Suitable for shipments requiring consistent cooling but not extreme low temperatures. These materials are non-hazardous and reusable, offering a more sustainable solution.
Glace sèche vs. Alternatives:
| Fonctionnalité | Glace sèche | Packs de gel | PCMS |
|---|---|---|---|
| Température | ≤ -78.5°C | 2°C à 8°C | Varie (typically 2–8°C) |
| Durée | 24–72 heures | 12–48 heures | Jusqu'à 72 heures |
| Coût | Modéré | Faible | Moderate to High |
| Mieux pour | Marchandises surgelées | Refrigerated items | Temperature-sensitive goods |
Pour la pointe: When shipping ultra-sensitive items like vaccines, consider using PCMs for better stability and regulatory compliance.
2025 Tendances de l'expédition de la glace sèche
The dry ice shipping industry is evolving in response to new regulations, sustainability concerns, and technological advances.
Clé 2025 Tendances:
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Emballage intelligent: Temperature sensors and IoT devices are becoming standard in shipments, providing real-time monitoring of dry ice levels and temperatures.
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Durabilité: Biodegradable and recyclable materials are gaining traction, offering a greener alternative to traditional dry ice packaging.
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Solutions de refroidissement hybrides: Combining dry ice with PCMs to maintain temperature stability for extended periods.
Questions couramment posées
De combien de glace sèche ai-je besoin pour une expédition de 24 heures?
Pour une expédition 24h / 24, typically 6-7 pounds of dry ice is required in an EPS liner or 4-5 pounds in a VIP system.
Can dry ice keep products frozen for 72 heures?
Oui, but you’ll need 15-30 livres de glace sèche, depending on insulation and ambient temperatures.
When should I use PCM or gel packs instead of dry ice?
For shipments under 72 hours that require temperatures between 2-8°C, PCM or gel packs are ideal. Dry ice is necessary for deep freeze conditions.
Conclusion et recommandations
Understanding how long dry ice lasts is crucial for ensuring the safe transport of perishable goods. The longevity of dry ice packs depends on factors like the amount of dry ice used, packaging quality, et les conditions environnementales.
Étapes d'action:
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Assess your shipment’s needs based on travel duration and product sensitivity.
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Choose the appropriate packaging to match your shipment’s duration.
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Plan for sufficient dry ice and consider alternatives like PCMs or gel packs if freezing temperatures aren’t necessary.
By following these steps, you can ensure your products stay at the right temperature during transit, optimize shipping costs, and maintain compliance with industry regulations.
À propos du tempk
Tempk is a trusted leader in cold chain logistics, offering dry ice solutions designed for secure, Envois sensibles à la température. Our products are engineered to maximize insulation efficiency, ensuring that your shipments stay cool throughout transit.
Contactez-nous for expert advice on choosing the best dry ice solutions for your business needs.
