tisane

Tisane is an infusion made by steeping plant materials other than the leaves of Camellia sinensis in hot water. In formal writing, a tisane refers to a non-tea infusion; if the preparation uses true tea leaves, it is not a tisane. Tisanes encompass a wide range of ingredients including herbs, flowers, fruits, seeds, bark, or roots, used alone or in blends.

Preparation methods vary. Most tisanes are brewed as infusions with near-boiling water for about 5 to 15 minutes. Harder plant parts such as bark and roots may require longer simmering or a decoction. The resulting beverage is typically caffeine-free unless the blend includes ingredients that contain caffeine.

Common examples include chamomile, peppermint, lemon balm, hibiscus, rosehip, elderflower, lavender, and ginger. Rooibos (Aspalathus linearis) and honeybush (Cyclopia species) are from South African shrubs and are marketed as tisanes, though they are not derived from Camellia sinensis.

Historically used for flavor, aroma, and traditional purposes, tisanes are produced worldwide and marketed as herbal teas. While they are generally caffeine-free, some blends or ingredients may contain caffeine. Scientific evidence on health effects is variable; tisanes should not replace medical treatment.

Storage considerations are straightforward: keep dried plant materials in a cool, dry place away from light. Brewed tisanes are best consumed promptly and can be refrigerated if necessary.