Most herbal teas are caffeine-free, but there are a few exceptions:
Yerba mate, guayusa, and yaupon are threeherbal teas made from three different species of holly, all ofwhich contain caffeine. Most species of holly do not containcaffeine. Yerba mate tends to contain more caffeine than tea, butless than coffee, although this varies widely based on how it isprepared.
Guarana is another caffeine-containing plant, sometimesincluded in herbal teas. Guarana is a climbing plant in the samefamily as maple trees, and is native to the Amazon.
Other than yerba mate, these plants are rarely consumed outside ofcentral and South America. Guarana is popular in Brazil, where theplant originated. There are a few other plants that containcaffeine, but even these plants listed are pretty esoteric in theworld of herbal tea.
Caffeine-free herbal teas include:
Some herbal teas contain chocolate or cocoa/cacao,which contains small quantities of caffeine. Some herbal teas areblended with black or green tea leaves – which, of course, addcaffeine to the blend.
As long as the herb(s) the tea is made from does/do not containcaffeine the tea will be caffeine free as well.