Cómo 24 Hour Dry Ice Packs Keep Cold Chain Shipments Frozen for a Day
The world of cold chain logistics relies on dependable refrigeration to keep products safe. 24 paquetes de hielo seco de la hora maintain sub zero temperatures without creating puddles because they sublimate from solid carbon dioxide directly to gas. This guide explains how these ultra cold packs work, cómo dimensionarlos correctamente, and what you need to stay compliant in 2025. You’ll learn why they outperform gel packs, how much dry ice you need for a day long journey, and how emerging technologies are making shipping safer and greener.
Como 24 hour dry ice packs work and why are they superior to gel packs?
¿Cómo eliges?, size and pack 24 hour dry ice packs for different shipments?
What safety and regulatory rules must you follow when using 24 paquetes de hielo seco de la hora?
How can sustainable practices and 2025 innovations improve your cold chain operations?
Cuáles son 24 Hour Dry Ice Packs and How Do They Work?
24 hour dry ice packs consist of pellets or slices of solid carbon dioxide sealed in vented packaging that releases gas as the dry ice warms. Because dry ice sublimates at around –78.5 °C, these packs maintain ultra cold temperatures for 24–72 hours without melting. A diferencia de los paquetes de gel, which thaw at 2–8 °C and leave water behind, dry ice keeps shipments completely frozen and dry. The main keyword appears early to highlight the subject, and understanding sublimation sets the stage for the rest of this article.
Shipping frozen meat, mariscos, vaccines or biologic samples requires reliable cold. Dry ice packs deliver colder temperatures than gel packs because CO₂ absorbs more heat when changing state. Each pack holds pellets that turn into gas, absorbing warmth and keeping your goods at –78.5 °C for up to three days. paquetes de gel, por el contrario, maintain chilled conditions around 2–8 °C. Since dry ice produces no liquid, packages stay dry and there is no condensation or soggy packaging. This makes 24 hour dry ice packs ideal for shipments that must remain completely frozen during transport.
Entendiendo la sublimación: Por qué el hielo seco no se derrite
El hielo seco es dióxido de carbono en forma sólida.. Instead of melting like water ice, él Susilimaciones – it turns directly into gas. This process occurs at –78.5 °C, which is why dry ice packs are so cold. Sublimation means there is no liquid runoff to damage packaging or leak onto products. Porque el gas es más pesado que el aire., you should place dry ice packs above your goods so the cold air can sink and circulate.
| Método de enfriamiento | Rango de temperatura | Duración típica | Lo que significa para ti |
| Mini capa de hielo seco | –78,5 °C a –18 °C | 24–48 H | Ideal for pharmaceuticals or biologics that require ultra low temperatures; previene la humedad |
| Paquete de hielo seco desechable | –78,5 ºC | Arriba a 72 h | Mantiene las carnes congeladas., mariscos o vacunas; Comodidad de un solo uso y sin agua derretida. |
| Paquete de gel (2–8 ° C) | 2–8 ° C | Arriba a 48 h | Keeps produce or medicines cool without freezing; reutilizable pero puede tener fugas |
| Paquete de agua tradicional | ≈ 0 °C | 24–36 horas | Cheapest for short journeys; limited thermal mass and produces meltwater |
Consejos prácticos y recomendaciones
Hidratarse y congelarse adecuadamente: Activar las capas de hielo seco hidratando las células poliméricas y congelándolas durante al menos 24 horas.
Preenfriar sus productos: Congelar o enfriar los productos antes de empacarlos reduce la carga de calor y extiende la duración del enfriamiento..
Utilice sábanas más grandes para viajes más largos: Los paquetes más grandes contienen más CO₂ y duran más.
Coloque paquetes en la parte superior: Fregaderos de aire frío, so position dry ice above your products; para rutas largas, surround goods with packs and combine them with phase change materials (PCM).
Temperatura de monitor: Employ data loggers or IoT sensors to track internal temperatures and adjust the number of packs.
Caso real: Una empresa farmacéutica que envía 8 lb of frozen vaccine vials from Los Angeles to Chicago used an 8 lb 24 hour dry ice pack and added 30 % extra dry ice for summer conditions. By pre freezing the vials to –20 °C and using vacuum insulated panels, the shipment remained below –70 °C for 72 horas.
Dimensionamiento y embalaje 24 Paquetes de hielo seco por hora: ¿Cuánto necesitas??
The right quantity of 24 hour dry ice packs depends on product weight, tiempo de tránsito, Calidad del aislamiento y temperatura ambiente.. Una simple regla general es una 1:1 Relación entre el peso del hielo seco y el peso del producto para envíos de 48 horas.. Para un viaje de 24 horas, you can often use slightly less, but factors like summer heat or complex routes may require extra packs. Para envíos de más de dos días, a 1.5:1 se recomienda la proporción.
Experts also recommend estimating sublimation loss. Dry ice sublimates at a rate of about 5–10 lb per 24 horas en un contenedor bien aislado. Mercury, un proveedor de logística, suggests using 5–10 lb of dry ice per day for items weighing up to 12.5 lb; a two day shipment requires at least 20 lb. Selecting good insulation can extend pack life by reducing sublimation losses.
When calculating your needs, consider route complexity and insulation upgrades. Sumando 25–35 % extra dry ice during summer or when delays are expected ensures sufficient cooling. Upgrading to vacuum insulated panels can reduce required dry ice by 10–25 %. Filling void spaces with foam or paper also reduces sublimation. Hybrid packouts combining dry ice with PCMs buffer temperature fluctuations and extend duration beyond 72 horas.
Weight Calculator: How Many Pounds of Dry Ice for 24 Horas?
Use this chart to estimate how much dry ice you need for various payloads and durations. The figures are derived from an industry dry ice calculator and assume good insulation. Values represent total dry ice weight, placed on top of the load; for larger loads the table suggests splitting between top and bottom layers.
| Peso de carga útil (lb) | hielo seco para <12 h (lb) | Dry ice for 24–48 h (lb) | Dry ice for 48–72 h (lb) | Significado práctico |
| 5 | 3 | 5 | 10 | 5 Las cargas útiles en libras necesitan aproximadamente 5 lb de hielo seco por un día; doble para viajes más largos |
| 10 | 5 | 10 | 15 | Usar un 1:1 ratio for up to two days, y 1.5:1 para 72 horas |
| 15 | 8 | 15 | 23 | Agregue extra para cargas de tamaño mediano; asegúrese de que haya ventilación cuando se use >20 lb |
| 20 | 10 | 20 | 30 | Las cargas más grandes necesitan proporcionalmente más hielo seco para permanecer congeladas en largas distancias |
| 30 | 10 (arriba) + 5 (abajo) | 20 (arriba) + 10 (abajo) | 30 (arriba) + 15 (abajo) | Dividir el hielo seco entre la parte superior e inferior garantiza un enfriamiento uniforme para envíos pesados |
| 40 | 15 (arriba) + 5 (abajo) | 25 (arriba) + 15 (abajo) | 40 (arriba) + 20 (abajo) | El transporte pesado puede requerir hasta 40 libras para 72 horas; plan de manejo y límites regulatorios |
Practical Sizing Tips and Advice
Evaluar los requisitos de peso y temperatura del producto.: Determine si sus productos deben permanecer a –70 °C, –20 °C o 2–8 °C, and adjust dry ice weight accordingly.
Consider route complexity and transit duration: Suma 10-15 % Más hielo seco para rutas de transferencia múltiple o posibles retrasos..
Upgrade insulation to reduce weight: Los paneles de vacío o los revestimientos reflectantes pueden reducir los requisitos de hielo seco hasta en 25 %.
Utilice paquetes híbridos: Combining dry ice with PCMs helps buffer temperature swings and extends cooling to 72 horas o más.
Condición previa y precongelación: Chill products and packaging before assembly to reduce initial heat load.
Ejemplo del mundo real: Un exportador de productos del mar reemplazó el hielo de agua por pequeñas rodajas de hielo seco y cajas ventiladas. By matching the dry ice weight to the product weight and filling voids, redujeron el peso del envío en 30 % y mantuvo los filetes de pescado congelados durante 48 horas sin fugas.
Choosing Between 24 Hour Dry Ice Packs and Gel Packs: cual es mejor?
Deciding between 24 hour dry ice packs and gel packs depends on the temperature your product requires and how long it must stay cold. Dry ice packs maintain –78.5 °C and are ideal for frozen goods, while gel packs keep items between 2–8 °C and are best for chilled products. Por ejemplo, frozen meat or vaccines must remain well below zero; chocolates and injectable medicines only need refrigeration..
Gel packs are water based and melt around 0 °C, so they cannot sustain deep freeze conditions. Sin embargo, gel packs protect products that must not freeze. They also help supplement dry ice: combining gel packs and dry ice slows sublimation and extends cooling. Al seleccionar un método de enfriamiento, considere la sensibilidad del producto, Duración de envío, cost and customer experience. Dry ice is regulated as a hazardous material and requires handling training, while gel packs are unregulated and simpler for end users.
Comparación de bolsas de hielo seco y de gel: Pros y contras
| Atributo | paquetes de gel | Paquetes de hielo seco | Lo que significa para ti |
| Rango de temperatura | Cerca 0 °C | Alrededor de –78,5 °C | Utilice bolsas de gel para productos refrigerados y bolsas de hielo seco para productos congelados. |
| Duración | 12–24 H (estándar) | 12–24 h por paquete; más largo con bloques | El hielo seco dura más en contenedores aislados |
| Residuo | Se derrite en agua | Sublimate al gas | El hielo seco previene los paquetes empapados y la condensación. |
| Manejo | No peligroso | Requiere guantes y ventilación | El hielo seco exige entrenamiento; gel packs are easier to handle |
| Regulación | No regulado | Clase 9 Material Peligroso | Debes seguir el embalaje., Normas de etiquetado y transporte para hielo seco. |
Cuándo elegir cada método de enfriamiento
Bienes congelados (carne, mariscos, vacunas): Elegir 24 hour dry ice packs to maintain ultra low temperatures. Equal weight of dry ice and product can keep items frozen for up to 48 horas.
Artículos fríos (producir, chocolate, productos farmaceuticos): Use gel packs when you need to keep products between 2–8 °C and prevent freezing.
Envíos mixtos (kits de comida): Separate compartments with dry ice for frozen components and gel packs for chilled items.
Customer comfort: If your customers are unfamiliar with dry ice, gel packs may be safer and simpler to dispose of; always include clear instructions when sending dry ice to end users.
Escenario práctico: A meal kit company used a hybrid approach—placing dry ice packs around frozen proteins and gel packs beside vegetables. This combination kept all ingredients within their proper temperature ranges and reduced confusion for customers.
Safe Handling and Regulatory Considerations for 24 Paquetes de hielo seco por hora
El hielo seco es extremadamente frío y está clasificado como material peligroso. (Y 1845), por lo que el manejo adecuado es esencial. Use guantes aislados, gafas de seguridad y mangas largas para evitar la congelación. Nunca manipule hielo seco con las manos desnudas.; El contacto con la piel puede causar lesiones graves.. Because dry ice releases large volumes of CO₂ gas as it sublimates, packages must be vented to prevent pressure buildup and avoid asphyxiation.
Regulatory agencies require that packages containing dry ice display a Class 9 etiqueta de peligro e indicar el peso neto. Many airlines limit dry ice quantities to about 5.5 lb (2.5 kilos) per package and require proper documentation. En los Estados Unidos, envíos sobre 5.5 lb must comply with Title 49 del Código de Reglamentos Federales; international shipments must follow IATA rules. Gel packs are not regulated and require no special labels.
Safety Checklist for 24 Paquetes de hielo seco por hora
| Medida de seguridad | Descripción | Por que importa |
| Use equipo de protección | Usa guantes gruesos, gafas y mangas largas | Prevent frostbite and eye injury when handling dry ice |
| Contenedores de ventilación | Nunca selle el hielo seco en una caja hermética.; use vented lids or punch small holes | Previene el aumento de presión y la acumulación de CO₂. |
| Etiqueta y documento | Marcar paquetes con ONU 1845 etiquetas y peso neto | Garantiza el cumplimiento de las normas de envío. |
| Proporcionar instrucciones | Inform recipients about dry ice handling and disposal | Reduces risk of injury and ensures safe end user experience |
| Responder a la congelación | Si se produce contacto, remove clothing not frozen to the skin and immerse the area in warm water (abajo 40 °C) | Promotes proper first aid and minimizes damage |
Regulatory Guidance and Weight Limits
Límites de peso: Envíos no médicos que contengan más de 5.5 lb of dry ice must follow Title 49 Reglas CFR o IATA. Shipments below this threshold require minimal markings.
Documentación: Provide Material Safety Data Sheets (MSDS) o instrucciones de seguridad para los destinatarios.
Transporte: Ventilate vehicles and avoid carrying dry ice in sealed passenger compartments.
Desecho: Let remaining dry ice sublimate outdoors; never dispose of it in sinks or trash cans where the extreme cold can damage fixtures.
Environmental Impact and Sustainability of 24 Paquetes de hielo seco por hora
Dry ice is essentially recycled CO₂, produced by capturing carbon dioxide from industrial processes such as ammonia synthesis or ethanol production. This means the CO₂ used in dry ice is repurposed rather than newly emitted. Mientras el hielo seco se sublima, it releases CO₂ gas back into the atmosphere, so efficient use reduces the overall footprint.
Sustainability depends on using the right amount and improving insulation. Vacuum insulated panels or reflective liners reduce dry ice consumption, which cuts both cost and CO₂ emissions. Hybrid systems combining dry ice with phase change materials or gel packs extend cooling without increasing CO₂ output. En 2025, reusable dry ice packs are emerging; these can be refilled hundreds of times and reduce waste by 20 %.
Sustainable Best Practices with 24 Paquetes de hielo seco por hora
Fuente CO₂ reciclado: Choose dry ice suppliers that produce their product from captured CO₂.
Optimizar la cantidad del paquete: Use just enough dry ice by calculating your needs and upgrading insulation.
Combinar métodos de enfriamiento: Hybrid packouts reduce the amount of dry ice required and lower emissions.
Considere los paquetes reutilizables: Emerging reusable dry ice packs can be replenished, Ahorrar dinero y reducir el desperdicio..
Educar a los clientes: Provide clear disposal instructions so recipients let dry ice sublimate outdoors rather than in enclosed spaces.
| Medida de sostenibilidad | Descripción | Beneficio |
| Producción de CO₂ reciclado | Dry ice made from CO₂ captured from industrial processes | Reduces reliance on virgin fossil fuels |
| Actualizaciones de aislamiento | Paneles de vacío, revestimientos reflectantes o rellenos de espuma | Lower dry ice consumption and CO₂ release |
| Sistemas de enfriamiento híbrido | Combining dry ice packs with PCMs or gel packs | Extiende la duración del enfriamiento sin agregar más hielo seco |
| Paquetes de hielo secos reutilizables | Paquetes diseñados para ser rellenados y reutilizados cientos de veces. | Reduce el desperdicio y los costos a largo plazo hasta en 20 % |
2025 Tendencias: Innovaciones en 24 Paquetes de hielo seco por hora
La industria de la cadena de frío está evolucionando rápidamente. En 2025, 24 hour dry ice packs are benefitting from smart sensors, blockchain traceability and greener materials. IoT temperature loggers and cloud based monitoring allow shippers to track the internal temperature of packages in real time and receive alerts if temperatures rise. Blockchain systems ensure chain of custody documentation, mejorar la transparencia y el cumplimiento. Reusable dry ice packs and hybrid cooling systems are becoming mainstream, Reducción de los desechos y costos.
Resumen del último progreso
Monitoreo inteligente: Data loggers integrated with 24 hour dry ice packs transmit temperature and location data, Permitir intervenciones proactivas cuando se produzcan desviaciones..
Paquetes reutilizables: Innovations in materials allow dry ice packs to be refilled dozens or even hundreds of times, cutting per shipment cost and lowering CO₂ emissions.
Soluciones híbridas: Combinando hielo seco con materiales de cambio de fase. (PCM) and gel packs creates multi temperature compartments in a single shipment.
Blockchain tracking: Digital ledgers record every handoff, ensuring regulatory compliance and preventing tampering. This builds trust in the cold chain.
Producción sostenible: Manufacturers increasingly produce dry ice from captured CO₂ and adopt biodegradable packaging to reduce environmental impact.
Ideas del mercado
Se prevé que el mercado mundial de refrigerantes para la cadena de frío crezca aproximadamente 1.690 millones de dólares en 2025 a 2.920 millones de dólares EE.UU. 2032. This growth reflects rising demand for temperature controlled logistics across food, productos farmacéuticos y biotecnología. Dry ice remains a critical refrigerant because it provides ultra cold conditions that gel packs cannot achieve. Mientras tanto, the broader cold chain market could exceed 1,6 billones de dólares por 2033. Investing in sustainable and smart 24 hour dry ice pack solutions positions you to benefit from this expanding market.
Preguntas frecuentes
cuanto tiempo hace 24 hour dry ice packs last?
24 hour dry ice packs are designed to keep products frozen for at least a full day. En un contenedor bien aislado, dry ice sublimates at about 5–10 lb per 24 horas. Larger packs or blocks can maintain ultra cold temperatures for up to 72 horas.
¿Cuánto hielo seco debo utilizar para un envío de 24 horas??
Utilice aproximadamente el mismo peso de hielo seco que el peso del producto para envíos bajo 48 horas. Por ejemplo, a 10 lb payload typically requires 5–10 lb of dry ice for one day. Ajuste la temperatura ambiente y la calidad del aislamiento..
Son 24 hour dry ice packs safe to use?
Sí, cuando se maneja adecuadamente. Utilice siempre guantes aislantes y gafas de seguridad., Mantenga los paquetes ventilados y etiquételos con la etiqueta ONU. 1845 advertencias de peligro. Follow weight limits to comply with regulations.
Can I reuse a 24 bolsa de hielo seco de una hora?
Los paquetes desechables tradicionales son de un solo uso.. Sin embargo, reusable dry ice packs are emerging in 2025 que se puede recargar cientos de veces, Ahorrar dinero y reducir el desperdicio..
What is the difference between dry ice and gel packs for overnight shipping?
El hielo seco mantiene –78,5 °C y mantiene los productos congelados., while gel packs maintain 2–8 °C for chilled goods. El hielo seco está regulado como material peligroso y requiere ventilación y etiquetado.; gel packs are non hazardous and easier to handle.
Resumen y recomendaciones
In this guide you learned that 24 paquetes de hielo seco de la hora work by sublimating solid carbon dioxide, providing ultra cold temperatures without messy meltwater. You discovered that sizing these packs depends on product weight, transit duration and insulation, con un 1:1 dry ice to payload ratio serving as a starting point. You compared dry ice packs to gel packs, seeing that dry ice is best for frozen goods while gel packs suit chilled items. Safety guidelines remind you to wear protective gear, vent containers and comply with regulations. Iniciativas de sostenibilidad, such as using recycled CO₂ and hybrid cooling systems, Reducir el impacto ambiental.
Próximos pasos viables
Calcula tus necesidades: Use the weight chart to estimate how many 24 hour dry ice packs you need for your next shipment. Tenga en cuenta el peso del producto, tiempo de tránsito y temperatura ambiente.
Actualizar aislamiento: Evaluate whether vacuum insulated panels or reflective liners can reduce dry ice consumption by up to 25 %.
Entrena a tu equipo: Educar al personal sobre el manejo seguro, labeling and disposal of dry ice to prevent accidents and ensure compliance.
Explora opciones reutilizables: Investigate reusable dry ice packs and hybrid packouts to lower costs and improve sustainability.
Monitorear envíos: Implement IoT sensors or data loggers to track temperature and receive alerts when intervention is needed.
Acerca de Tempk
Tempk se especializa en innovative cold chain packaging. Diseñamos y fabricamos 24 paquetes de hielo seco de la hora, paquetes de gel, bolsas aislantes y revestimientos de cajas de alto rendimiento. Nuestros productos aprovechan el CO₂ reciclado y el aislamiento avanzado para proporcionar confiabilidad, enfriamiento ecológico. Con décadas de experiencia y una R&D center focused on sustainable materials, Ayudamos a los clientes a enviar productos perecederos de forma segura y al mismo tiempo reducir el desperdicio y los costos.. Eligiendo tempk, you gain access to customized solutions, technical support and the latest cold chain innovations.
Llamado a la acción
Listo para optimizar su cadena fría? Contact Tempk today for a personalized consultation or explore our range of dry ice packs and insulated packaging solutions. Nuestro equipo le ayudará a elegir los productos adecuados., calculate your dry ice needs and implement sustainable practices.
