Tisane, or “herbal tea”, is a catch-all term for any non-caffeinated beverage made from the infusion or decoction of herbs, spices, or other plant material in water. These drinks are distinguished from caffeinated beverages like coffee, maté, kuding, and the true teas, or from a decaffeinated tea, in which the caffeine has been removed. In addition to serving as a beverage, many tisanes are also consumed due to a perceived medicinal benefit.
