Green tea? Gaaah...
Tried 2 versions of 'real' green tea in Japan. The 1st was in Takashimaya department store in Ginza, given to me in the food court by a enthusiastic Japanese man keen to gain my thoughts. How I didn't spit it out all over him was a miracle.
The second, was in Himeji Koko-en, where the wife and I thought we'd be traditional and go to a tea ceremony. Once more, I thought I was going to provide green pebble-dash to the tatami mat and the polite Japanese ladies kimono, but somehow kept it in.
I'm the son of a builder, and have been raised on a diet of Typhoo & PG Tips. Even coffee tastes minging to me. My wife drinks Rooibos, which is supposed to be good for you, and is apparently very hydrating, so you could try that. To me, it just smells of fish flavoured nettles, and tastes even worse.