On 3/27/2005 4:29 PM, Space Cowboy wrote:
> I just realized I have to guess at the amount of caffeine in a gram of
> tea. If there is an answer I don't know it. I think it would be a
> constant across the oxidation styles so the caffeine in a gram of
> Silver Needle would be in the ballpark of puerh making the caffeine in
> a cup a matter of brewing times and not leaf weight. This all started
> when my wife read that coffee has 200mg of caffeine in three cups of
> coffee which I assumed were 6oz each. I was drinking a mug of oolong
> at the time and I could approximate the gram weight to make the the tea
> but no clue to the caffeine level. My guess is 20mg of caffeine per
> gram of tea. I derived that from the fact I would make a 6oz cup with
> 2 grams of tea for a total of 6 grams for the three cups or 120ml
> caffeine which would be about half the given amount of coffee. What
> numbers have you seen for caffeine weight versus tea weight?
>
> Jim

Hi Jim,

I don't have an answer, but the (useless) Sunday newspaper here includes
"USA Weekend" for the Sunday magazine, and the article I'm linking to
below was in it today. He writes that 200 milligrams is "about the
amount of caffeine in two cups of regular coffee, three cups of black
tea or four cans of cola" but says:

"Caffeine is difficult to measure. Coffee tends to contain the most,
followed by teas and soft drinks. But there are so many varieties, sizes
and strengths of coffee that you can no longer make simple statements
about how much is in your favorite cup of joe."

http://www.usaweekend.com/05_issues/...althsmart.html or

http://tinyurl.com/63rro

Resa