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rentzsch.com: I don’t understand Coffee Physics

Fresh hot coffee: yum. ** Day old coffee:** yuck. Cold coffee (day-old coffee that’s been stuck in the fridge): yum.

I’ve noticed this too: but even more so, if I brew some fresh coffee, it’s great. If I brew it, pour it over ice and put fresh cold milk in there, it’s great. If I put it in a thermos flask, and drink it two hours later, it’s still nice and hot, but no longer nice.