Not cold enough!?!

KLITE

KLITE

Well-Known Member
Hi all

I cant get the material inside the tubes being put in the freezer to go much bellow -3C, cans at nearly -30 and so is the steel of the tube, but material inside doesnt get any colder. Some chickpeas i have in there are at -20, does the airy nature of the material create an insulating quality that doesnt allow it to reach lower temperatures? Or am i just stupid, i consider that too..
 
Fadedawg

Fadedawg

Well-Known Member
KLITE said:
Hi all

I cant get the material inside the tubes being put in the freezer to go much bellow -3C, cans at nearly -30 and so is the steel of the tube, but material inside doesnt get any colder. Some chickpeas i have in there are at -20, does the airy nature of the material create an insulating quality that doesnt allow it to reach lower temperatures? Or am i just stupid, i consider that too..
Click to expand...
It just makes it harder to measure its temperature. The laws of thermodynamics tell us that the material will drop to the same temperature as its surroundings, even though it may take longer to reach that temperature, than a liquid or piece of metal, because of boundary layers and K values.
 
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