San Mateo Loose Leaf Yerba Mate - 5 Pound Bag - Guayak"i? 1/2 Yerba Mate #airdried #herbaceous #sanmateo #sanmateoregion. Guayaki's San Mateo Yerba Mate is from the San Mateo region of Brazil and since it is air dried (most Yerba Mate is smoke dried) it has an unsmoky finish which can compliment certain flavors more. Most if not all Brazilian style Mates are never smoke dried. &jeffq 2019-08-19 11:50:02 |