Hello. Professional coffee roaster here. There is some useful and interesting information posted here, but another explanation is that you are drinking low quality coffee. One reason why people like hot coffee is that burning your tongue a little bit prevents you from fully appreciating the negative aspects of what you’re drinking. When evaluating coffees, we always taste them at a range of different temperatures, and all of the best coffees I’ve ever had have tasted best between body temperature (or just above) and room temperature.
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