I need to know the percantage of caffeine in all the different coffee products
Researchers purchased 10 16-ounce decaffeinated cups of drip coffee from coffee shops and restaurants and analyzed them for caffeine content.
They found all but one -- decaffeinated Folgers Instant, purchased at a Krystal fast-food restaurant -- contained caffeine. The caffeine content ranged from 8.6 milligrams to 13.9 milligrams.
That's about a tenth of the caffeine found in an 8-ounce cup of regular drip-brewed coffee, which contains about 85 milligrams of caffeine.
Next, researchers tested several samples of decaffeinated espresso shots and decaf brewed coffee from the same Starbucks location to determine if caffeine content varied in the same drinks from the same location.
The results showed that the caffeine content of the decaffeinated espresso shots varied widely -- from 3 to nearly 16 milligrams; the caffeine content of the decaf brewed coffee ranged from 12 to 13.4 milligrams per 16-ounce serving.
Researchers say even though the caffeine content of decaffeinated coffees is low, people could develop a dependence on them.
"The important point is that decaffeinated is not the same as caffeine-free," says Roland Griffiths, PhD, a professor of behavioral biology and neuroscience at the Johns Hopkins School of Medicine, in the news release. "People who are trying to eliminate caffeine from their diet should be aware that popular espresso drinks such as lattes (which contain two shots of espresso) can deliver as much caffeine as a can of Coca-Cola -- about 31 milligrams."
Info from: http://www.webmd.com/diet/news/20061011/decaf-coffee-isnt-caffeine-free
Now to the question about how much caffeine in all the OG coffee product is about 8 milligrams so its less decaffeinated then other coffee brands which is about 12-30 milligrams.
EX: One of the six cups decaffeinated Brands from Dunkin' Donuts had 32 mg; one from Seattle's Best had 29 mg; and one from Starbucks had 21 mg.
Did you end up getting an acceptable answer to your question regarding the percentage of caffeine in our coffee products?