Hi Wendy,

Yes tannins are in tea but also they are in most
barks too. Especially noticable in conifererous
barks such as Pine, Redwood etc as used for
potting orchids. They are all mixed in with
resins/terpentines etc to give that 'pine' smell.
Best regards
Alan
"
I shall have to research the "tannin" thing.
Isn't it in tea?
Cheers Wendy