Det koster dessverre å lese hele artikkelen, så jeg må sitere fra abstractet. Men Specialty Coffee Association of America (SCAA) fikk i 2002 utført en studie for å finne den foretrukne temperaturen for drikking av kaffe:

In a 2nd experiment, 108 consumers performed the same experiment with black coffee only, but repeated it using different coffee strengths. In all experiments, the chosen mean preferred temperature for drinking was around 60 &C

60 grader, there you have it.