Maintaining the right temperature during transport keeps medicine safe, food fresh and research samples viable. Dans la logistique de la chaîne du froid, cooling systems dry ice packs are indispensable because they reach ultra low temperatures without leaving water behind. You’ll learn why dry ice works better than gel packs, how hybrid systems combining phase change materials (PCM) smooth temperature swings, and what new technologies like IoT enabled packs and biodegradable materials mean for your shipments. We’ll also cover safety, regulations and real world tips so you can choose the right solution.
How do cooling systems dry ice packs work and why are they vital for cold chain logistics? Explore the science behind dry ice and learn how it keeps products frozen without moisture.
Dry ice vs gel packs – which cooling method fits your needs? Understand the differences in temperature range, cooling duration and cost to choose the best option.
What innovations and sustainability trends shape dry ice packs in 2025? Learn about hybrid PCM systems, Surveillance de l'IoT, biodegradable materials and renewable CO₂ sources.
How do you safely handle, package and comply with regulations when using dry ice? Discover best practices for packaging, labeling and ventilation to protect your shipment and comply with IATA and DOT rules.
Which industries benefit most from dry ice packs and how should you adapt for food, pharma or industrial shipments? See real world examples and tailored recommendations.
What Makes Cooling Systems Dry Ice Packs Essential for Cold Chain Logistics?
La glace sèche est un dioxyde de carbone solide (Co₂) that sublimates at −78.5 °C (−109,3 ° F), which means it goes directly from solid to gas without leaving liquid water. This ultra low temperature capability allows dry ice packs to keep medicines, vaccines and frozen foods safely below their critical thresholds for up to 48–72 hours. Contrairement à la glace ordinaire, dry ice doesn’t create water that could damage packaging or spoil products.
Dans 2025, cold chain logistics rely on dry ice packs across multiple industries:
Pharmaceutical and biotech: Vaccins, biologics and lab samples require strict temperature control. Dry ice prevents them from thawing and losing potency. You must select insulated containers and vented packaging to allow CO₂ gas to escape safely.
Frozen food logistics: Fruit de mer, meat and frozen vegetables travel long distances. Dry ice packs keep them frozen for 48 hours and avoid moisture damage that would occur with water ice.
Industrial and welding: Dry ice pellets are used for cleaning and cooling equipment. Pellets vaporize quickly, providing rapid cooling but requiring reliable supply.
Packs de glace sec contre gel: Which Cooling Method Fits Your Needs?
Gel packs and dry ice both maintain cold temperatures, Mais ils servent des fins différentes. Gel packs keep products cool (2–8 ° C) and are ideal for items that must not freeze, such as chocolate, flowers or certain pharmaceuticals. They are water based and melt at around 0 °C, providing a gentle cooling effect over 24–48 hours. Gel packs are also easier to handle because they are non hazardous and reusable.
Dry ice packs provide deep freezing (< -70 ° C) for 48–72 hours. Because dry ice sublimates into gas instead of melting, it leaves no liquid residue. Cependant, dry ice is classified as a hazardous material; shipments over 5.5 lb must comply with IATA and DOT regulations. You should avoid dry ice when shipping items sensitive to freezing (such as live seafood, flowers or delicate pharmaceuticals).
Feature Comparison
| Fonctionnalité | Paquet de glace sec | Pack de gel | Hybrid PCM Pack | Votre avantage |
| Durée de refroidissement | 48–72 heures | 12–24 heures | 24–48 heures | Choose based on how long your shipment travels |
| Plage de température | −78,5 ° C (−109,3 ° F) | 2–8 ° C | 10–30 °F (−12 °C to −1 °C) | Protects ultra cold, chilled or medium cold products |
| Étanche | Yes—no water residue | No—melts into water | Yes—sublimates and remains sealed | Prevents package damage |
| Cost effectiveness | High but single use; must replenish each time | Moyen, réutilisable | Haut (reusable PCM units) | Aligns with budget and sustainability goals |
| Règlements | Dangereux: requires labeling and training | Non hazardous | Non hazardous | Simplifies or complicates compliance |
Conseil: Use gel packs when shipping goods that must stay chilled without freezing (Par exemple, dairy or chocolate). Use dry ice when shipping frozen products or ultra cold biologics that can withstand extreme cold. For shipments requiring a stable 2–8 °C range over 48 heures, phase change materials (PCMS) can replace or supplement dry ice.
Choosing the Right Dry Ice Format and Packaging for 2025
Dry ice comes in several formats—blocks, dalles, slices, pellets and nuggets. Large blocks sublimate slowly and are ideal for bulk shipments such as long distance frozen foods. Pellets and nuggets provide rapid cooling because their higher surface area accelerates sublimation, making them suitable for short hauls or pre chilling. Thin slices or custom cuts fit neatly into packaging systems, balancing coverage and duration.
Packaging plays a critical role in dry ice performance. Insulated containers with thick walls and tight seals slow heat transfer and reduce sublimation. Pre conditioning the container by chilling it before loading reduces thermal shock and extends hold time. Proper airflow ensures the CO₂ gas can escape safely; place dry ice above the payload so cold air sinks and envelops the shipment. Minimizing void space using slices, pellets or filler prevents warm pockets that accelerate sublimation.
Format and Packaging Summary
| Dry Ice Format | Description | Meilleure utilisation | Avantage pratique |
| Blocks/Slabs | Large pieces with slow sublimation | Bulk shipments or long transit times | Provides consistent cold for extended periods |
| Granulés/Nuggets | Small particles with high surface area | Short trips, pre chilling or industrial blasting | Refroidissement rapide, flexible placement |
| Slices/Custom cuts | Thin pieces tailored to container shape | Ecommerce parcels, food kits | Reduces void space; balanced duration |
| Hybrid PCMs | Packs containing phase change materials | Controlled 2–8 °C or −20 °C shipments | Réutilisable, non hazardous temperature buffering |
Tips for Users
Food shipment: Choose blocks for long haul frozen meat; pre condition containers and layer dry ice above the product. Avoid pellets that may super cool produce.
Médicaments: Use slices combined with PCMs to prevent super cooling; monitor payload with data loggers to avoid under and over freezing.
Industrial blasting: Order pellets or nuggets and invest in local pelletizing capacity to hedge against supply shortages.
Étude de cas: A vaccine distributor improved delivery efficiency from 36 heures pour 72 heures by integrating insulated containers with dry ice packs and selecting slices to maximize surface area. The company also used vented packaging to safely vent CO₂ gas, preventing pressure buildup and protecting staff.
How Do Sustainable and Hybrid Cooling Systems Improve Dry Ice Pack Usage in 2025?
Sustainability is a major focus in 2025. Traditional dry ice comes from CO₂ captured at industrial plants, mais manufacturers now source CO₂ from renewable biogas plants, reducing the carbon footprint. Recyclable and biodegradable packaging materials are also gaining traction, minimizing plastic waste. A leading pharmaceutical company cut packaging waste by 60 % and costs by 40 % after switching to sustainable dry ice solutions.
Sustainability in Dry Ice Production and Packaging
Efforts to lower emissions and waste include:
Renewable CO₂ sources: Dry ice producers use carbon captured from biogas or other renewable processes, reducing reliance on fossil fuels.
Biodegradable dry ice packs: Some packs are designed to break down safely after use, helping companies meet net zero goals.
Eco friendly packaging: Insulated containers now include recyclable foams and biodegradable linings.
Reusable PCMs: Phase change packs can be reconditioned and reused across multiple shipments, Réduire les déchets.
These innovations align with the circular economy: resources are reused rather than discarded. As you choose your cooling method, consider whether your supplier offers renewable CO₂ or biodegradable packaging to reduce environmental impact.
Systèmes de refroidissement hybrides: Combining Dry Ice with Phase Change Materials
Hybrid systems blend dry ice with PCMs to stabilize temperature. PCMs absorb or release heat at specific setpoints, providing a buffer that smooths temperature fluctuations. They maintain ranges like +2 °C to −20 °C and are reusable and non hazardous. Dry ice adds ultra cold capacity (< -70 ° C), so combining both can extend cooling duration and reduce the amount of dry ice needed.
Par exemple, a hybrid pack might use PCM panels set at −20 °C for an overnight pharmaceutical shipment; dry ice slices are added on top for the first 12 hours when extra freezing is required. Once the dry ice sublimates, the PCM maintains 2–8 °C. Hybrid systems also mitigate supply constraints: during dry ice shortages, PCMs reduce reliance on blocks and pellets.
Active, Passive and Hybrid Packaging Explained
Understanding the three main categories of cold chain packaging helps you choose the right system:
Active systems are like portable refrigerators. They use thermostatic control and require power from batteries or external sources. They offer precise temperature control but are expensive, heavy and limited to standard sizes.
Passive systems rely on insulation and refrigerants (glace carbonique, packs de gel ou PCM) to maintain temperature without external power. They can sustain low temperatures for up to 96 hours and are more affordable.
Hybrid systems combine active and passive elements. An active unit charges a PCM “battery” that maintains temperature when power is unavailable. These systems balance reliability with reduced energy consumption.
Hybrid systems are gaining popularity because they reduce energy use and extend shipping duration without constant power. When shipping across long distances with uncertain power availability, hybrid systems offer a resilient solution.
What Are the Latest Innovations in Dry Ice Packs and Cooling Systems in 2025?
Technological advances are reshaping cold chain logistics. Here are the standout innovations:
IoT Enabled Dry Ice Packs and Smart Monitoring
Embedding sensors into dry ice packs allows you to monitor temperature and location in real time. IoT devices send alerts if temperatures deviate from the required range, preventing spoilage and ensuring compliance. Pour les produits pharmaceutiques, this data is crucial for audits and regulatory adherence. Smart packs can also record transit conditions, providing an audit trail for GDP (Bonnes pratiques de distribution) et 21 Partie CFR 11 conformité.
Technology Application Table
| Technologie | Application | Avantages |
| Capteurs IoT | Real time temperature and location tracking | Empêche la détérioration, supports regulatory compliance |
| Biodegradable Materials | Eco friendly dry ice packaging that decomposes safely | Reduces waste, meets sustainability goals |
| Emballage intelligent (RFID) | Integration of RFID and data loggers in cooling packs | Enhances tracking, simplifies audits |
| Automatisation et robotique | Automated packaging lines for cold chain logistics | Increases efficiency, reduces human error |
Automation and Digital Tools: Enhancing Cold Chain Logistics
Cold chain companies are adopting robotics to reduce human error and increase throughput. Automated packaging lines assemble insulated boxes, insert refrigerants and label shipments faster than manual methods. Digital platforms manage inventory, predict dry ice consumption and schedule replenishment based on demand forecasts, mitigating supply shortages.
Biodegradable and Eco Friendly Materials
Research into biodegradable dry ice packs is accelerating. These packs use polymers that degrade after sublimation, Réduire les déchets de décharge. Recyclable foams and compostable liners are being integrated into insulated containers. Although biodegradable packs currently cost more, they align with corporate sustainability goals and may become standard as regulations tighten.
How to Safely Handle and Regulate Dry Ice Packs in Cold Chain Logistics?
Dry ice is extremely cold and requires careful handling. Follow these best practices:
Avoid direct skin contact: Use loose fitting insulated gloves or tongs to handle dry ice. Skin contact can cause severe frostbite.
Store in a well ventilated area: La glace sèche sublime dans le gaz co₂. Store it in insulated but non airtight containers and ensure ventilation to prevent pressure build up.
Label and document shipments: La glace sèche est classée comme une matière dangereuse. Packages above 5.5 lb must follow DOT and IATA regulations, including proper labeling and documentation. For lighter shipments, minimal markings suffice as long as the contents aren’t hazardous.
Utiliser un emballage ventilé: Allow gas to escape through vents or breathable materials to avoid explosion risks.
Disposer correctement: Laissez les restes de neige carbonique se sublimer dans un endroit bien aéré. Do not pour dry ice down the drain, as extreme cold can damage plumbing.
Safety and Regulatory Summary
| Safety Topic | Lignes directrices | Importance |
| Manutention | Utilisez des gants isolés; avoid bare hands | Prevents frostbite |
| Stockage | Ventilated, non airtight container; tenir à l'écart des enfants | Prevents pressure build up and asphyxiation |
| Étiquetage | Mark packages with “Dry Ice” and net weight; follow IATA/DOT rules | Ensures legal compliance |
| Élimination | Sublimate in open area; never dispose in sink or sealed bin | Protects infrastructure and safety |
Étude de cas: A biotech firm shipping CRISPR samples followed IATA guidelines by labeling each package with the dry ice weight and venting containers. Using insulated gloves and clear instructions, they avoided staff injuries and maintained compliance.
How Do Cooling Systems and Dry Ice Packs Impact Various Industries?
Food and Meat Processing
Food shippers use dry ice to keep meat, seafood and frozen meals below −18 °C during transit. Thinner slices or pellets enable rapid cooling on processing lines, while large blocks maintain low temperatures during long transport. Shippers are investing in better insulation to extend hold times and reduce dry ice sublimation.
Tip for food logistics: Invest in curbside recyclable boxes or vacuum panels to reduce the amount of dry ice needed, and pre chill containers to improve performance.
Pharmaceutical and Labs
Biologique, vaccines and gene therapies require strict temperature control. Barrier technologies that slow CO₂ release and real time monitoring help maintain safe conditions. Reusable PCM shippers are gaining traction for less temperature critical medicines, reducing total dry ice use.
Tip for pharmaceutical shipping: Combine dry ice with PCM panels and monitoring devices; validate packaging against both under cooling and super cooling to protect sensitive payloads.
Industrial and Welding Applications
Dry ice blasting requires a steady supply of pellets. Contractors often face supply shortages because pharmaceutical and food industries get priority. To adapt, many are locking long term contracts and investing in on site pelletizing equipment.
Tip for industrial users: Secure local stock or consider hybrid PCM solutions for equipment cooling when dry ice supply is tight.
Other Sectors
Cold chain logistics extends beyond food and pharma. Floral products, cosmetics and high value electronics benefit from gel or PCM packs that prevent freezing while maintaining stability. Start ups in the meal kit industry often use a combination of gel packs and PCMs to ensure ingredients arrive at 2–8 °C even during shipping delays.
2025 Latest Developments and Trends
Market Insights and Growth Forecast
The dry ice market is under strain. Demand has climbed about 5 % par année, while CO₂ supply has grown only 0.5 %, causing periodic shortages and price spikes. Even so, demand continues to rise: the global dry ice market was valued at USD 1.54 milliards en 2024 et devrait atteindre USD 2.73 milliards 2032, a compound annual growth rate (TCAC) de 7.4 %. Shortages are worsened by the diversion of CO₂ to carbon capture projects.
Cold chain logistics overall is booming. The global cold chain logistics market was worth USD 436.3 milliards en 2025 and is expected to reach USD 1,359.78 milliards 2034, growing at a TCAC de 13.46 %. By technology, le dry ice segment held the largest market share (55.16 %) dans 2024. Asia Pacific is forecast to grow fastest at 14.3 % TCAC.
Emerging Innovations and Trends
Smart Monitoring Systems: IoT sensors track shipments in real time, preventing temperature excursions and improving compliance.
Systèmes de refroidissement hybrides: Combining dry ice and PCMs yields stable temperatures and energy efficiency.
Automation in Packaging: Robotics increase throughput and reduce errors in high volume operations.
Matériaux durables: Biodegradable and recyclable packaging supports circular economy goals.
Renewable CO₂ Sources: Biogas and carbon capture feedstocks reduce greenhouse gas emissions.
Decentralized Production: Building local dry ice plants reduces supply bottlenecks and transportation emissions.
Market Insights Table
| Indicator | 2024/2025 Figure | Projection/Trend | Meaning for Your Business |
| Dry Ice Market Size | USD 1.54 B (2024) | USD 2.73 B by 2032 | Indicates growing demand for ultra cold logistics |
| Cold Chain Market Size | USD 436.3 B (2025) | USD 1,359.78 B by 2034 | Reflects booming demand across sectors |
| Dry Ice Segment Share | 55.16 % of cold chain tech in 2024 | Highest share continues through 2030s | Suggests dry ice remains dominant but hybrid growth is likely |
| Supply Growth Rate | 0.5 % CO₂ supply growth vs 5 % demand growth | Ongoing shortages and price volatility | Plan for supply disruptions and explore hybrid systems |
Questions fréquemment posées
Q1: How long do dry ice packs last during shipping?
Dry ice packs typically last 48–72 heures depending on the amount of dry ice and the insulation of your container. Pre chill containers and minimize void space to maximize hold time.
Q2: La glace sèche peut-elle être réutilisée?
Non. Dry ice sublimates directly into CO₂ gas, so it disappears during use. Cependant, containers and PCM packs are reusable, providing a sustainable alternative.
Q3: What packaging materials are best for dry ice shipments?
Use insulated containers made from EPS foam or polyurethane, paired with emballage ventilé pour permettre au gaz CO₂ de s'échapper. Pre conditioning the container improves performance.
Q4: Are eco friendly dry ice options available?
Oui. Dry ice produced from renewable CO₂ sources such as biogas and carbon capture is becoming more common. Biodegradable dry ice packs and recyclable insulation also reduce environmental impact.
Q5: Quelle quantité de neige carbonique dois-je utiliser pour mon envoi?
A rule of thumb is to pack half the weight of your payload in dry ice for overnight shipments. Equal weight of dry ice and payload keeps products frozen for up to 48 heures, alors que 1.5× the payload weight may be required for 72 hour shipping.
Q6: Est-il sécuritaire d’expédier de la neige carbonique à l’international?
Oui, but you must comply with IATA and DOT regulations, label the package, and ensure ventilation. For non hazardous goods under 5.5 LB de glace sèche, only minimal markings are required.
Résumé et recommandations
Cooling systems dry ice packs remain the backbone of cold chain logistics because they deliver ultra cold temperatures without water and keep products frozen for up to 72 heures. Gel packs and PCMs serve complementary roles: gel packs maintain 2–8 °C for shorter durations and are reusable, while PCMs enable hybrid systems that buffer temperatures and reduce dry ice use. Sustainability is advancing quickly—renewable CO₂ sources, biodegradable packs and recyclables reduce environmental impact. 2025 trends include IoT enabled monitoring, hybrid cooling systems, automation and decentralized dry ice production. Market growth suggests rising demand, but supply constraints require careful planning.
Étapes suivantes
Assess your product requirements: Determine whether your shipment needs ultra cold, chilled or medium temperatures and choose dry ice, gel packs or hybrid systems accordingly.
Optimiser l'emballage: Utiliser des conteneurs isothermes, pre chill them, and select the right dry ice format (blocs, pellets or slices) to minimize sublimation.
Adopt sustainable solutions: Partner with suppliers that offer renewable CO₂ dry ice and biodegradable or recyclable packaging. Consider reusable PCM packs for long term cost savings.
Integrate technology: Implement IoT sensors for real time monitoring and automation to reduce error and increase efficiency.
Plan for regulation and safety: Train staff to handle dry ice properly, label packages and comply with IATA/DOT rules.
Internal Link Suggestions
Cold chain packaging solutions – link to an article exploring insulation materials and passive vs active systems.
Appareils de surveillance de la température – link to a guide on selecting data loggers and IoT sensors for cold chain shipments.
Sustainable cold chain logistics – link to content discussing renewable CO₂ sources and biodegradable packaging.
Phase change materials vs gel packs – link to an in depth comparison of PCMs and gel refrigerants.
Handling hazardous materials – link to a page detailing DOT and IATA regulations for shipping dry ice.
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À propos du tempk
Tempk is a specialist provider of cold chain solutions, offering dry ice packs, packs de gel, phase change materials and insulated containers. We combine decades of experience with ongoing R&D to deliver reliable, emballage durable. Our products are designed to maintain optimal temperatures for pharmaceuticals, food and biotech shipments. Tempt’s innovations include IoT enabled packs and eco friendly materials, helping businesses reduce waste and meet regulatory requirements. We’re committed to helping you optimize your cold chain logistics through expert consultation and tailored solutions.
