Yerba Mate Leaf, Stem, and Powder
Different yerba mate brands provide different proportions of leaf, stem, and powder.
The leaf contains more nutrition, antioxidants, and stimulation than any other part. Pure leaf yerba mate is also known as 'sin palo.' Many North Americans prefer the strong, clean cup of tea that pure leaf yerba mate provides.
The stems add a light, woody taste. Yerba mate with stem is also known as 'con palo.' If you want to enjoy traditional yerba mate beverages like terere, you might prefer a yerba mate blend with some stem in it.
The powder is potent, but it doesn't last very long. Powdery yerba mate tends to clog bombillas.