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poofandmook's avatar

How do I keep ice cream frozen with dry ice for a 2-hour car ride WITHOUT the ice cream getting rock hard?

Asked by poofandmook (17222 points ) November 22nd, 2012

I made homemade ice cream to take for Thanksgiving, knowing that I have access to free dry ice in pellet form through my job.

During Sandy when we had no power for a week, I had two large mixing bowls in the bottom of my refrigerator filled with dry ice. I noticed that some things on the shelf directly above it froze, despite being several inches above the dry ice.

That being said, is there anything I can do during this car trip to keep my ice cream from getting rock solid? It’s the perfect, fluffy consistency right now, and I don’t want to ruin it :)

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8 Answers

JLeslie's avatar

If it freezes solid it won’t get back it’s fluffiness if you put it in the fridge for an hour when you get to where you are going? I don’t know much about ice cream, but I know when I Put frozen cool whip or ice cream in the fridge it softens.

If it will change the consistency, I would bring a separate container with dry ice, and put not very much ice in the one with the ice cream. Check it after 30 minutes and if it gets too soft add some more dry ice from the other container. Or, I would use regular ice which won’t be as cold as the dry ice probably.

majorrich's avatar

We’ve not had as much trouble if we wrap the dry ice in several layers of newspaper and leaving the cooler drain hole open.

Response moderated (Unhelpful)
2davidc8's avatar

I don’t recommend dry ice. I once tried using it to keep meat frozen for a trip, and it cracked the cooler, and the meat would not thaw even after several hours outdoors.

I would try filling up the cooler with ice, then putting salt on the ice, then surrounding your ice cream container with the ice/salt mix.

jerv's avatar

I just have to point out the obvious; “Wet” ice is +32F while Dry ice is -109F. That is about the difference between room temperature and steam. It is cold enough to cause major problems with most plastics and organic material.

For a trip that is only two hours, regular ice would be a far safer bet unless you are the type to swat mosquitoes with a sledgehammer.

Response moderated (Spam)
jaytkay's avatar

How was the ice cream? What flavor? (I am jealous for homemade ice cream).

poofandmook's avatar

the ice cream was a bit softer than I would have liked when we finally got there… and the host’s freezer is actually what ruined it for me.. lol. It was butter pecan, and it was so so good!

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