A 72-hour heat pack (or heatpack 72 hours +) is a type of thermal pack commonly used in shipping live plants, animals (like reptiles, fish), or other temperature-sensitive items. These heat packs generate consistent heat over a prolonged period (in this case, 72 hours or more), which helps to maintain the temperature within the package during transit.
Key Features of a 72-Hour Heat Pack
Long Duration | Provides heat for at least 72 hours, making it ideal for longer shipping durations or conditions where temperatures could drop significantly. |
Air-Activated | These heat packs are typically air-activated, meaning that once the outer packaging is opened and exposed to air, a chemical reaction starts to produce heat. |
Consistent Heat | Designed to provide a steady, gradual release of heat rather than a short, intense burst, ensuring the items stay warm without overheating. |
Non-Toxic | Most 72-hour heat packs are non-toxic and safe for use with live plants or animals, and they generally don’t produce harmful fumes. |
Uses of a 72-Hour Heat Pack
Shipping Live Plants | Ideal for shipping tropical plants or plants that are sensitive to cold temperatures. The heat pack ensures the plants stay at a suitable temperature while in transit, preventing cold damage. |
Shipping Live Animals | Often used in the shipment of reptiles, amphibians, and fish that require a stable warm temperature. It helps prevent them from getting stressed or sick due to temperature fluctuations. |
Orchid Shipping | Used to ship orchids or other delicate plants in cold weather, especially in winter months or colder climates where temperature drops during shipping can harm the plant. |
Medicinal | Heat packs can also be used for shipping temperature-sensitive medicinal or biological products that need to be kept at a specific temperature to maintain their effectiveness. |
How It Works
Once activated by exposure to air, the heat pack starts releasing heat through an exothermic chemical reaction. This process usually involves the oxidation of iron powder inside the pack. The pack is typically placed inside the shipping box, usually away from direct contact with the plants or animals (separated by packing material) to avoid overheating or burns.
A 72-hour heat pack is an essential tool for shipping temperature-sensitive items, ensuring safe and warm transit over a long period. It’s especially useful in colder months or when shipping plants, animals, or other items that need to be kept above a certain temperature threshold.
Type | 1 Pack, 5 Pack, 10 Pack |
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