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

Dry ice can help create a spooky effect at your next Halloween party, but if it isn't 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 -109.3°F, to be exact), it sublimates into a gas pretty quickly.

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

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