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by ghshephard
5567 days ago
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The keeping coffee "Hot" problem is easily solved with a good, insulated, transit mug. High quality ones will keep your coffee very hot for a couple hours. What the Joulies do is _cool_ the coffee by initiating a phase change in their PCM, but then don't drop it too far down. |
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They actually actively maintain the temperature until their internal substance has turned back into a solid (which may or may not be what you meant).