Short answerDry ice keeps food frozen for days. Plan on 5 to 10 pounds lost every 24 hours, wrap it, leave the lid unlatched, and keep the cooler out of the car cabin and tent.
Packing the cooler
- Wrap the dry ice in newspaper or a towel and put it on top or bottom, away from food you don't want frozen solid.
- Fill empty space with paper.
- Leave the lid unlatched so the gas can escape.
Safety on the trip
- Ride the cooler in the trunk or truck bed, not the car cabin.
- Never keep it in a tent or camper while people sleep.
- Handle it with insulated gloves.
Sources (checked October 27, 2026)
General guidance, not professional safety advice. Follow your supplier’s and carrier’s instructions.