Short answerPack the food and dry ice in a foam container inside a sturdy box, let the gas vent, and plan on losing about 5 to 10 pounds of dry ice per day in transit.
Packing
- Use a foam container inside a sturdy corrugated box.
- Keep the food separated from direct contact with the dry ice.
- Tape the box lightly so it is not airtight. The gas has to escape.
- Never use glass or airtight containers.
How much dry ice
Plan for about 5 to 10 pounds lost per 24 hours, plus a buffer for delays. Thinner foam loses it faster.
Labels and carrier rules
Dry ice is regulated for shipping. Carriers require hazardous-materials labels and may require an agreement for air shipments. Check your carrier's dry ice rules before you ship: UPS points to 49 CFR 173.217 for US air and IATA Packing Instruction 954 for international.
Sources (checked October 27, 2026)
General guidance, not professional safety advice. Follow your supplier’s and carrier’s instructions.