Dry Ice in Coolers: How Long Does It Last?
Quick answer Dry ice can keep a cooler frozen for 24-72 hours, depending on the cooler type and amount of dry ice. Use a cooler with good insulation for the best results. Styrofoam is okay, but a high-performance cooler is better. Don’t seal the cooler airtight; dry ice sublimates and needs ventilation. Handle dry ice…