Liquid air

... they pressurise them selves they actually evacuate the containing air so the resulting gas medium in the autoclave after heating is predominantly ... a pressure cooker. The difference is, in a pressure cooker the water or liquid medium would be at the same temperature as the steam. This pressure ...

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... that enough time and heat has been applied to your device to be truly sterile. And as I said above it is not safe because handling superheated liquid might be fun, but create massive/explosive bubbling that can cause burn. - In your last paragraph what you are describing is actually exactly ...

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... and travel down. The first water molecules they hit are the ones in the air space above the contact lens saline solution. These molecules reach temperatures ... well above 100C even though there is still water, which is still in liquid form bellow. You can control this temperature by regulating ...

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... then thawn. Trehalose synthesis and other metabolic changes take some time, though, so your water bear will not survive if you simply drop it into liquid nitrogen.

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... embryo can be easily frozen and succesfully thawn after decades, and probably after a nearly limitless amount of time if storen properly (e.g. in liquid nitrogen or colder). However, currently there are no means to cryogenically store bigger animals, not to mention warm-blooded mammals such as ...

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