Nigel, I did notice the 11% caffeine figure he quoted, thank you for
shining the light on this one.

> correlation between the two systems - for example he gives 3.5%
> methylxanthines (caffeine) on whole leaf basis but 7-9%
> methylxanthines on an extracted green tea beverage basis - and even
> higher at 8-11% for an extracted black tea beverage - that's up to 11%
> of the solids in your Yellow Label tea is caffeine; fortunately its
> 11% of just 0.3 to 0.35% extract concentration in the cup (from Hal's

Did you mean "11% of just 30% to 35%" i.e. the soluble solids?

I'm happy with your answer. And thanks for pointing out the apparent
anomaly

Julian
http://www.amazing-green-tea.com