How Long Does Dry Ice Last?
Solid carbon dioxide used for cooling, fog effects, and transporting frozen goods.
The Short Answer
These times are based on USDA food safety guidelines and assume proper storage conditions.
Storage Times at a Glance
Source: Food safety reference | Last verified: March 19, 2026 | Our methodology
Never put dry ice in a sealed container. The gas pressure can cause an explosion. And never in your freezer; it is colder than your freezer and will shut the thermostat off.
How to Store Dry Ice
Store in an insulated cooler with the lid loosely closed. Never in the freezer or an airtight container. Handle with insulated gloves.
How to Tell if Dry Ice Has Gone Bad
Look for these signs that dry ice has spoiled: dry ice sublimates (turns directly from solid to gas). it does not spoil; it simply disappears. a 10-pound block lasts about 24 hours in a standard cooler.
The Professor's rule: When in doubt, throw it out. No meal is worth food poisoning.
The Bottom Line
Always store in airtight containers, refrigerate within 2 hours of purchase or preparation, and trust your senses. If something looks, smells, or feels off, discard it regardless of how many days it has been.
Frequently Asked Questions
In a standard insulated cooler, dry ice sublimates at about 5-10 pounds per 24 hours. Buy it the same day you need it.