Dry ice, a solid form of carbon dioxide (CO2), is a versatile and essential coolant used to maintain the freezing temperature of shipments during transit. Unlike traditional wet ice, dry ice sublimates directly into a gas, eliminating the risk of damage to your shipment from melting ice. It offers several advantages, including ready availability, cost-effectiveness, and the ability to sustain a frozen temperature for extended periods.
Dry ice can burn skin if touched, the gas vapor can explode if not allowed to vent. Because of this there are very specific regulations around shipping with dry ice.
Dry ice is the ideal coolant for keeping shipments frozen, whether you're transporting sensitive medical supplies, perishable goods, or temperature-sensitive research samples. With a chilling temperature of -109.3°F (-78.5°C), dry ice provides exceptional insulation capabilities when properly packaged, ensuring a prolonged frozen state. This resilience becomes particularly crucial for long-distance or international shipments, where maintaining consistently low temperatures is essential to prevent spoilage or degradation of goods.
If your shipment requires dry ice to maintain the appropriate temperature, it's crucial to consider the rate of dry ice evaporation, which can impact the duration of your shipment. Generally, dry ice evaporates at a rate of 5-10 lbs. per 24 hours. For instance, if your shipment weighs up to 12.5 lbs. and requires dry ice, you should have at least 5-10 lbs. of dry ice per day. For a two-day journey, it's recommended to have at least 20 lbs. of dry ice to ensure temperature maintenance. Using insufficient dry ice can lead to spoilage or damage to your goods, so it's best to err on the side of caution and use more than you think you'll need.
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