How to store dry ice
Store dry ice in a well-insulated container. The thicker the insulation, the slower it will sublimate. Do not store dry ice in a refrigerator or a completely airtight container.
How Long Will Dry Ice Last?
It will disappear at 10% to 25% per day as it sublimates (change from a solid to a gas) depending on the insulation efficiency and the surrounding temperature.
An inexpensive Styrofoam cooler from the grocery store will work for a short time.
An ice chest used for camping or picnics will work better.
A thick polystyrene box such as those used by Omaha Steaks or the insulated containers from Control Temp Packaging will provide the best storage.
For commercial storage, several companies, such as those shown here, offer a variety of larger containers.
CAUTION! Properly ventilate any storage area of your dry ice container as concentrations of CO2 can build up and be dangerous.
DO NOT leave dry ice unattended where children or others could take it. You may be liable for injuries.