I have often wondered about the complaints on any auto not brewing hot enough: are people saying that the brew temp is too low and are measuring it, or are people saying that the coffee in the carafe is not hot enough? I suspect it is the latter, and people are brewing into a cold carafe, rather than pre-heating the carafe by filling it with hot water and letting it sit for a few minutes before emptying it out and then brewing. I have to pre-heat the carafe or my wife complains.