Yerba Maté… What’s all the fuss about? So what exactly is Maté? Maté is a caffeinated infusion prepared by brewing the dried leaves of Yerba Maté, a South American species of holly. The full-bodied beverage presents deep vegetal overtones with hints of green tea grassiness. We’re pleased to offer Organic Unroasted Green Maté from Brazil. Cancheada grade Maté is larger leafed maté and as such is perfect for repeated brewing – the larger leaf holds in the flavor.