DaemianLucifer wrote:For the second one,I cant argue.But how can the concentration of caffeine be higher in a solid coffee than in solid tea,if they are 2:1 in brewed liquids where the concentration of solid coffee and solid tee is 2:1 in the same amount of water?(which is the reason I said tee has more caffeine in the first place)
I don't know why you care about the amount in solid tea vs. solid coffee, because nobody consumes that any way. The statement was made in the context of which beverage was a better source of caffeine. Coffee is clearly the winner in that regard. It's why everyone drinks coffee.
And even so, given that coffee (beverage) usually has at least twice as much caffeine per unit volume as tea, even if they were brewed from a 1:2 ratio of the solids (which I doubt is a uniform number), the coffee STILL has an equal or greater amount of caffeine, per mass of solid. Then you have variables like the fine-ness of the solid, etc. However, when I extracted it from the solids, I still acquired more from coffee than from tea.
There are also many other variables. The more you roast coffee, the less caffeine it has. Ditto goes for tea types ("fermenting" instead of roasting). Even the region where the plant was grown can affect the content of the bean/leaf.
"What men are poets who can speak of Jupiter if he were like a man, but if he is an immense spinning sphere of methane and ammonia must be silent?" - Richard P. Feynman