Organic tea does not contain added fluoride. However, fluoride is a mineral that can be found in tea plants due to it being naturally absorbed from the soil and rainwater. As a result, organic tea does contain fluoride, but not in quantities that should be cause for concern.  Fluoride is a mineral that our bodies need for building strong bones and teeth and the quantities found in tea vary according to the brand: a British study conducted in 2013 found that cheaper brands tend to have higher levels of fluoride in the tea. Your drink will also end up with more fluoride in it if you steep your tea for longer periods of time.  This study also found that fluoride levels were different depending on the type of tea in question. Therefore, if you’re concerned about your fluoride intake, pu’er and oolong teas have the lowest levels of the mineral, followed by pure blends, black tea, and green tea.