You might know about yerba mate via its recent desecration as the "maté latté." But before it was served in postconsumer recycled cardboard Starbucks cups, the South American herb was more typically imbibed through a silver straw stuck into a hollowed-out gourd filled with the bitter, naturally caffeinated herb. And it still is — drinking maté is a strong cultural tradition practiced in Argentina, Uruguay, Paraguay, and Brazil. You can cultivate the habit too — this is Miami, after all — but you'll need the right equipment. The Taystee Gourmet Deli and Bakery might not seem like the first choice of an aspiring matero, but don't be fooled: The back wall boasts an impressive collection of Argentine necessities, including matés, the hollow gourds that take the shredded leaves (ranging in price from about $5 to $7), and bombillas, the little metal straws that filter the drink and bring it piping-hot to your boca. Of course, the store sells the yerba maté itself, with a few brands to choose from; a pound of the stuff, plenty to get you started, won't cost more than $3 or $4.