Fresh Cup Magazine (#)
„ If the process takes much longer, water spends more time in contact with ground coffee and causes undesirable acids and caffeine to go into the solution, producing an overextracted, bitter espresso. If dosing and packing is held steady, the "shot time" is a practical way of monitoring the extraction process. The fineness of the grind controls the shot time.“
http://www.freshcup.com/anatomy.htm - Cached
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Coffee History - Learn about coffee...
„A pound of tea, on average, has twice the caffeine of a pound of coffee. But a pound of tea yields about 160 cups, while a pound of coffee makes only about 40 cups. The net result is that a cup of tea contains roughly one-quarter the caffeine in a cup of coffee. Caffeine content is nearly identical in all shades of roasts of coffee.“
http://www.javacafe.com/cofhistory02.htm
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View topic - Althetes and Caffeine - Coffee Forum
„Maybe give them 1 cup of coffee instead of 4 cups. I know coffee and caffeine has been previously proven, and proven again by generations of studys to benefit soldiers in battle, physical performance and mental awareness both increases with a cup of joe. Not to mention moral.“
http://www.coffeeforums.com/ viewtopic.php?p=5296
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„Espresso is a superior coffee method due to the pressurized brewing water, combined with a short brewing time, separating out undesirable flavors and excess caffeine from the sweet coffee flavor. It is a world unto itself offering the coffee lover repeated trips to the "bar" without stomach upset or over caffeination occurring.“
http://www.lucidcafe.com/cafeforum/ schomertable16.html
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International Coffee Organization
„So when we find that caffeine, at levels found in one cup of coffee, can both reduce the sensation of fatigue as well as enhance exercise performance, this has significant implications for us all. See Positively Coffee press release of 28 July 2004 “
http://www.ico.org/ed/news.htm
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The Coffee Review - the world's leading coffee buying guide
„Few, if any, studies report negative effects from doses of caffeine under 300 milligrams a day. Since the average cup of coffee (or single serving of espresso) contains about 100 milligrams of caffeine, one could infer from this evidence that anyone should be able to drink about three cups of coffee a day and enjoy the benefits of caffeine with none of the drawbacks. Such a figure assumes, of course, that you do not also consume quantities of cola drinks, chocolate bars, and headache pills. This is a conservative estimate, however.“
http://www.coffeereview.com/ reference.cfm?id=117
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