Newsflash: Dark roast = bitter coffee

[keno]

From the things that make you wanna go "duh!" category:

Battling Bitter Coffee: Chemists Identify Roasting As The Main Culprit

But the science is interesting and it helps to explain why dark roasts are not the best (even though so many people mistakenly associate them with espresso).

Cheers,
Ken

[Jarno]

They probably wrote this over a meeting at Starbucks...

[cannonfodder]

Not necessarily, there are a few origins that will take a dark roast if it is properly managed. But most do go south after 15 seconds of 2nd crack.