Yerba Mate, Beneath the rainforest canopy in South America, the Guarani Indians have been drinking the steeped juice of the leaves of the wild yerba tree-bush for centuries. They cite numerous health benefits, including increased immune system strength, improved digestion, stress reduction, and stimulation of mental processes. The yerba is the leaves; dried and crushed to make a tea-like herb. You may add sugar or honey to sweeten the Yerba as the Argentineans do. Or drink it plain as the majority of South America does.
To allow proper flavor release and to avoid a bitter flavor, Yerba tea should be steeped in hot water, not boiling. By using a "hot steep" you can infuse the same tea leaves several times and still experience an excellent tea.