Is there much difference between the effects of mate and standard black tea? Because there's almost the same amount of caffeine in a strongly brewed black tea as there is in coffee.
http://www.theguardian.com/news/2013/nov/27/caffeine-compare...
http://www.theguardian.com/news/2013/nov/27/caffeine-compare...
It's mixed with hot water (or cold) than drank through a filter/straw
https://www.google.com/search?q=crianca+chimarrao&num=20&sou...
Pros - gets stuff done, cuts the chit-chat, and all without a hint you're taking medication.
Cons - life without it.