"Robert Dunbar" > wrote in message
...
> Does anybody know how caffeine is is Pu-er, compared to black, green and
> oolong?
>
> Also, does "green Pu-er" have less caffeine than the regular stuff?
>
> Robert

All tea leaf have the same (appox) amount of caffeine. However it is easier
to extract it in one steep from broken leaf oxidized teas (like average
black) and therefore the cup of black tea has more caffeine than others.
Black tea is rarely re-steeped and if it is, the second steep has much less
caffeine. Whole leaf teas and large leaf teas have the same amount of
caffeine, but give it up slower (and not only caffeine, but all its
ingredients) and therefore are steeped several times. This way each cup may
have less caffeine. Steeping time and temperature also play their roles.

Puerh has the same amount of caffeine (by weight) and depending on
technology can give it up quicker and slower. Same while leaf vs broken,
temperature, steeping time etc. But nothing is better than direct
measurment. If you have a liquid chromatograph handy.

Sasha.