mfasano wrote:I think espresso is always bitter.
For many, the term "bitter" invariably carries a negative connotation, but there's plenty of chocolates, beers, cheeses, and wines that would be uninteresting if they did not have a bitter component. When someone says "espresso is always bitter", I take that to mean its counter-balancing components like sweetness/acidity/saltiness are lacking.
For what it's worth, when I lived overseas, the espresso served at most bars was bitter, end of story. I added 1 to 1-1/2 cubes of sugar to make them drinkable. In my own kitchen, I cannot remember the last time I added sugar to espresso, though I don't have a moral objection to doing so (see Abe's
The obsession with sweet espresso - a dogma in the making for extended discussion of this point).