you can really see how the espresso is extracting. they re fanatics, but you, the coffee drinker, stand to benefit the most. should be a very nice dark brown. should have a lot of what s called crema on the top, which is technically one book calls it a polyphasic colloidal foam. i at all it that, too. exactly, yes. you sound like a coffee nerd. oh, yes. yes, i am. reporter: while they may sound like caffeinated geeks, the same, some argue, could have been said about the wine industry. coffee, they say, is just as complex. these indie roasters are trying to do nothing less than transform how we drink and how we think of coffee. that zeal has created thousands of caffeinated converts. at new york s sumptown coffee, they line up patiently for their fix. how much coffee do you drink a day? enough to kill a small