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Old 09-06-2019, 06:14 PM
EinsteinsHund's Avatar
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Quote:
Originally Posted by SciFiSam View Post
There are thermos flasks that will keep stuff either hot or cold depending on how it started. I think some modern ones aren't made to withstain high temperatures, but a lot of older such cups did both.
Now I am confused. I thought it was the point that a thermos keeps low temperatures as well as high ones.

ETA: or else my conception of such a container is old-fashioned....
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Last edited by EinsteinsHund; 09-06-2019 at 06:16 PM.