How Long Does Dry Ice Last?
The shelf life of dry ice depends mainly on how the dry ice is stored and the size of the brick. Dry ice is frozen carbon dioxide, the same gas that we exhale and that plants use for photosynthesis. It is never a liquid, it goes from a -109.3F solid state directly to the gas stage. But, it is NOT a food and should never be directly touched or consumed. Because of this, dry ice enjoys most of its popularity at Halloween for making witch’s brew and by shipping companies for packaging frozen items, but it can actually be used for keeping things cold all year long. Because of its short shelf life, dry ice should be purchased as close to when you need it as possible. So, how long does dry ice last? When properly stored, the shelf life of dry ice past the purchase date is approximately (based on an average 5 pound brick of dry ice that remains whole)…
||In a Cooler (ice chest)
|Dry Ice lasts for
Of course, dry ice lasts for a shorter period of time if it is not stored properly. Dry ice subliminates (turns from solid form to gas form) at a rate of about 5-10 pounds every 24 hours. So, if you need about 15 pounds of dry ice for the next day you need to buy 20-25 pounds the day before.
It can be found at select local grocers or online at frozenontime.
How to tell if dry ice is bad, rotten or spoiled?
If you see it, it’s good. If it’s bad, it’s invisible.
Remember, NEVER touch or taste dry ice – it will cause severe burns to your hands or throat.
How to store dry ice to extend its shelf life?
Proper storage is the key to extending the expiration date of dry ice. First of all, don’t put dry ice in the freezer. It is much colder than a freezer and will cause the thermostat of the freezer to shut the freezer down. Proper storage of dry ice is in an insulated cooler with the lid loosely closed. You do NOT want to use an airtight container, like we recommend for food, because the build up of carbon dioxide gases as the dry ice subliminates could cause the container to burst and send sharp pieces of plastic flying in all directions. The cooler or ice chest should be kept in the coolest area possible which is also a well ventilated area. Never leave dry ice in your closed vehicle or in a closed room and never sleep in the same area as you are storing your dry ice. Also keep your windows down in the car as you are transporting any dry ice. And, NEVER let dry ice touch your skin. ALWAYS use insulated gloves or tongs to handle your dry ice and NEVER eat or drink any dry ice or dry ice fragments.
Leave the room quickly if you have trouble breathing around dry ice.
To dispose of the dry ice, leave it outside or in a bucket of water – either place will cause it to quickly turn back into carbon dioxide gas.
How long is dry ice good for when added to liquid?
How long does dry ice last? That depends. How long does fruit juice last? In general, dry ice will subliminate very quickly when submerged in a liquid. To find out how long other ingredients are good for, please visit the Dairy, Drinks, Fruits, Grains, Proteins, Vegetables and Other sections of Eat By Date or search below!
Search the Shelf Life Guide!
To make dry ice at home, check this
What are our shelf life resources?
Our how long does dry ice last content incorporates research from multiple resources, including the United States Department of Agriculture and the United States Food & Drug Administration. In addition, we scoured the web for informative articles and reports related to food safety, food storage and the shelf life of dry ice.
*An important note about expiration dates …
Although the dry ice shelf life information on Eat By Date is generally reliable, please remember that individual cases will vary and that our advice should only be taken as an opinion and not replace your health care professionals advice. So, how long will food last? Let’s find out!