system
Given the following post, respond as if you're commenting on Reddit:
human
ELI5 - how is dry ice an industrially effective cooling method?

i would think that whatever equipment you used to get the carbon so damn cold would be more effective as a refrigerant than ice that rapidly evaporates, so why is dry ice used to cool things down instead of a freezer?
gpt
Dry ice is used to keep things cool when you don't have a freezer - for example when you transport things. The main advantage of dry ice is that it *sublimates* - while normal ice goes from solid to liquid, dry ice goes straight to gas, without transitioning to liquid first. This way, whatever you cool remains dry (hence the name "dry ice").