Myth-bustin'

I've recently made my life a lot better by the addition of a coffee grinder to my counter-top appliance roster. Freshly ground coffee really is superior to the pre-ground stuff. I used to deny it, but seriously people, face the music; go out, buy yourself a coffee grinder, and live better.
So while I was grinding my coffee this morning (Seattle's Best "Bright," which is surprisingly tasty), I recalled a conversation I had last night in which I had to contradict a friend who was saying that on mornings when he's really dragging, he brews darker roast coffee for the additional caffeine it holds. I informed him, much to his surprise that dark roast coffees actually have less caffeine than lighter roasts. I learned this from a man who roasts coffee for a living and owns a coffee shop in downtown St. Louis, where I worked for a few months. The roasting process actually releases the caffeine from the bean; thus, the darker the roast, the less the caffeine.
This is a conversation that I've actually had several times before, not surprisingly. The fact is counter-intuitive- darker coffees boast a bolder, richer taste- but don't be fooled friends, there's a reason "Breakfast" blends are always light roasts.