haha.. though tea is. the germans developed a cold energy drink from it called Club-Mate which successfully (i think) solves the pain in the arse question of energy drinks tasting like shite. can get it in the us can and mexico on mail order, it blew my mind but then i lived in europe before. check it out, has like 100 cals a bottle too and hardly any sugar, just sweet sweet sustained caffeine highs. makes any office job instantly doable