-- Posted by SilverDragon1Wings at 9:49 am on Nov. 21, 2008 I've always reheated leftover coffee in the pot by turning the power on and waiting for it to warm up. The other day a friend of mine told me that it really doesn't heat the coffee up, rather it turns on and acts like it's making coffee although there's nothing in there, and the coffee just so happens to get warm. I was wondering, is it ok to reheat leftover coffee in the coffee pot by turning the power button on? I read that reheating old coffee decreases flavor because the oils are activated or some scientific thing. So what's the best way to reheat coffee? -- Posted by Fortis Obscurum at 9:49 am on Nov. 21, 2008 No.  It causes ass cancer. -- Posted by santana 08 at 9:50 am on Nov. 21, 2008 mircowave? -- Posted by Amb3rLynn at 9:53 am on Nov. 21, 2008 i would just microwave it.. we never reheat coffee where i work so0o i dunno -- Posted by surfergurl at 9:56 am on Nov. 21, 2008 microwave -- Posted by ulii at 9:57 am on Nov. 21, 2008 i like cold coffees..like mocha frappucinos from starbucks:D my mum does it by microwave though she says its just fine that way