Oolong Tea is harvested from the Camellia Sinesis plant. Oolong Tea leaves are only partially oxidized after being harvested. The amount of oxidation is controlled by the Tea Master at the plantation and will vary. However, the oxidation level is higher than a green tea, but not fully-oxidized to become a black tea. The Camellia Sinesis plant naturally contains caffeine. The amount of caffeine in Oolong Tea is generally around 30-35mg per 8oz cup. Oolong Tea should be prepared using non-boiling water (around 190 degrees Fahrenheit/ 87 Celcius) and 1 teaspoon per 8oz cup. Oolong Tea leaves can (and should) be enjoyed multiple times. Traditionally, the 2nd and 3rd infusions are purported to be better than the first. The leaves should be used within the same day of the original infusion.