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Where to Buy Dry Ice and How to Make It Last - Trick-or-Treat

Where to Buy Dry Ice and How to Make It Last - Trick-or-Treat
From The Kitchn - October 13, 2017

Dry ice can help create a spooky effect at your next Halloween party, but if it is not properly stored, it will dissipate into a fog before you actually need it to. Dry ice is the frozen form of carbon dioxide, which is why, instead of melting into a liquid when heated, it instead turns into a gas. Because it's so cold (an extra-frigid -109.3F, to be exact), it sublimates into a gas rather quickly.

So if you go to the trouble of obtaining dry ice for Halloween, here area couple tips to follow that will ensure it stays frozen until you need it to billow spooky fog long into the night.

Where to Buy Dry Ice

You can find dry ice at some grocery stores, as well as at ice cream shops (who use it to pack ice cream for shipping). Want to find a retail outlet in your area? Check out this directory and enter your area code.

How Long Does Dry Ice Last?

As a rough rule, five pounds of dry ice will turn from a solid to a gas in 24 hours. It's best to pick up the block of ice just a few hours before your party so it's as frozen as possible when the bash starts.

How to Store and Safely Handle Dry Ice

Once you get it home, do not store inside a freezer. It can damage your freezer and the dry ice will melt quickly since the freezer is so much warmer than the dry ice itself. Instead, store it in a styrofoam or an insulated cooler.

The air inside the cooler will get very cold and slow down the time it takes for the ice to change into a gas. Just be sure to keep the cooler lid slightly ajar, as any dry ice that does turn into a gas can build pressure and cause the lid to pop off.

How to Make Dry Ice Fog!

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