this post was submitted on 06 Aug 2025
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You'd actually want to freeze them as fast as possible, to prevent the growth of large ice crystals that would tear the cell apart. That's why you do it by dunking them in liquid nitrogen. But yeah frozen bacteria are basically immortal.
You freeze mammalian cells by dunking them in LN2? I've... never heard of anyone do that. I've always put them in either a Mr. Frosty or a styrofoam conical holder (makeshift Mr. Frosty)
I really enjoy that the actual name for a scientific tool is Mr. Frosty.