by ChrisC on Wed Jan 09, 2008 8:58 pm
I voted hot -- I don't have a timer, so I cheat Miss Silvia each morning, flushing through the PF and basket to ensure they're hot enough. I just put my empty cup under the flush, then leave it sitting full while I measure beans, grind, etc. About 2 minutes max. Then I dump it out, wipe dry, and place the cup under the GH and pull the shot.
I've been recently theorizing that the slightly sour last swallows I sometimes get from the espressos at even the best cafes here in town, is probably because they rely on the cup warmer, and when you're stacking cups 2 or 3 high, the top ones (first grabbed) aren't really that hot. My espressos at home are never sour, even to the bottom of the cup.