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Thursday, 01 November 2007
I've got some space food for sale on eBay if anyone's struggling for gift ideas this Christmas. They're all freeze dried and have a novelty factor about them!
Here's how they freeze dry ice cream:
Freeze-drying, or lysophilisation, removes water from the ice cream by lowering the air pressure to a point where ice shifts from a solid to a gas. The ice cream is placed in a vacuum chamber and frozen until the water crystallises. The air pressure is lowered, creating a vacuum, forcing air out of the chamber; next heat is applied, vaporising the ice; finally a freezing coil traps the vaporized water. This process continues for hours, resulting in a perfect freeze-dried ice cream slice.
Just to reassure you, I have tried all of these myself and I was very suprised. I didn't expect them to taste anything like they should do but they really do. Plus, it's interesting seeing ice cream freeze dried - it's got the same sort of consistency as the crunchy part of a Crunchie bar!
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@Laura - I think the skip voucher has to be the gift that keeps on giving!
Written on Friday 02 November 2007 at 09:18:22 GMT (Permalink)
Thank you to all previous commenters.
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This could be for a number of reasons but is most likely due to prevent the discussion from digressing.
Laura
David, if you think astronaut food is tasty you should try Giant Toasted Leafcutter Ants!
http://www.christmasgiftsbl...
Written on Thursday 01 November 2007 at 22:47:34 GMT (Permalink)