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[Pretty Little Flower]

Originally posted by robustpuppy
The idea that over-roasting would reduce the amount of caffeine sounds like barista bullshit to me. I think caffeine content is determined by the type of bean, not the roasting method, and may explain why Starbucks' caffeine content varies from day to day in these studies -- b/c the coffee of the day varies.

http://webcenter.health.webmd.netsca...tentSRC_nsmain

http://www.infoplease.com/ipa/A0777440.html

There is a dissenting viewpoint about whether roasting method determines caffeine content:

"In a written statement provided by Starbucks, spokeswoman Lara Wyss stated that there are many variables that contribute to caffeine content from cup to cup, such as the type of bean, roasting and brewing methods, and grind."

I found the above quote at the following link:

http://webcenter.health.webmd.netsca...tentSRC_nsmain