🚀 go-pugleaf

In article <1993Jan20.191142.12266@cs.nott.ac.uk>, ppxpjr@unicorn.nott.ac.uk (P.J.Rodgers) writes:
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=
=
=I've got a question which is bothering people here - how do you freeze dry
=food?
=
=Do you need liquid nitrogen - cos we've got some and we want to use it?
=We also have high vacuum facilities - and these little suckers are just waiting
=to be put to a good purpose.
=
=Finally have clean room facility in case of contamination problems.  We want to
=freeze dry Ice cream.
=
=Thanks for your help

All you need is a freezer/pump combination that will drop the pressure and
temperature to the point that water sublimates instead of thawing and
evaporating.
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Carl J Lydick | INTERnet: CARL@SOL1.GPS.CALTECH.EDU | NSI/HEPnet: SOL1::CARL

Disclaimer:  Hey, I understand VAXen and VMS.  That's what I get paid for.  My
understanding of astronomy is purely at the amateur level (or below).  So
unless what I'm saying is directly related to VAX/VMS, don't hold me or my
organization responsible for it.  If it IS related to VAX/VMS, you can try to
hold me responsible for it, but my organization had nothing to do with it.