What other North American city would be the source of a soft drink with a South American twist? Miami's own Cawy Bottling Company produces a fizzy elixir made with yerba mate extract. (No, those are not marijuana plants in the logo.) Mate tea, of course, is a wildly popular hot drink in Argentina and is on the rise in the Argentine outpost expanding right here in the southern cone of Florida. Among the herb's fabled effects: a healthy gastrointestinal tract, a strengthened immune system, youthful hair, improved sexual performance, and less stress (not necessarily in that order). But one is not always in the mood for hot tea in 95-degree heat. Hence the cold variant in a can. While the sucrose and corn sweeteners in Materva may undermine the medicinal powers of the mate, one must never underestimate the placebo effect. Anyway you'll be doing your teeth and waistline a favor. The most amazing thing about Materva is that it's produced in this sugar-crazed town but is far less sweet than Coke, Pepsi, and their uncola counterparts.