>>11654525>which sorts of tea contain fluoride anyway?"All tea leaves contain fluoride; however, mature leaves contain as much as 10 to 20 times the fluoride levels of young leaves from the same plant.[9][10]"
"The fluoride content of a tea leaf depends on the leaf picking method used and the fluoride content of the soil from which it has been grown; tea plants absorb this element at a greater rate than other plants. Care in the choice of the location where the plant is grown may reduce the risk.[11] It is speculated that hand-picked tea would contain less fluoride than machine-harvested tea, because there is a much lower chance of harvesting older leaves during the harvest process. A 2013 British study of 38 teas found that cheaper UK supermarket tea blends had the highest levels of fluoride with about 580 mg per kilogram, green teas averaged about 397 mg per kg and pure blends about 132 mg per kg. The researchers suggested that economy teas may use older leaves which contain more fluoride. They calculated a person drinking a litre of economy tea per day would consume about 6 mg of fluoride, above the recommended average dietary intake level of 3–4 mg of fluoride per day, but below the maximum tolerable amount of 10 mg of fluoride per day.[12] Brick tea, made from fallen leaves, old leaves and stems has the highest levels.[13]"
https://en.wikipedia.org/wiki/Health_effects_of_tea#Fluoride_exposureTLDR: All (real) tea contain fluoride, but higher quality tea contains less. Teabags contain the most (and it is extracted better from dustings), and you'd have to drink a litre of it every day to exceed the daily recommended fluoride threshold.
