Cryogenic vials...really necessary?

Alex Brands abbrands at
Wed Oct 8 16:06:58 EST 1997

Hey all,

I've been keeping my glycerol stocks in 2ml snap-cap eppendorf type tubes.
Today, someone told me that glycerol stocks will eventually dessicate in
those types of tubes, and that's why the screw-cap cryogenic tubes are

So, can anyone confirm or deny that the snap-cap tubes are inappropriate
for long term frozen storage?  If they are, roughly how long the stocks
will last in a snap-cap tube?


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