There are varying amounts of caffeine in tea. This can create some confusion when I am asked about caffeine content in my teas. Basically what it comes down to, is the more processed the tea is, the more caffeine in the tea. White and green tea, have a minimal amount of caffeine in them because they are not allowed to oxidize or ferment. They are quickly processed after they are picked. Black and oolong teas have a little more caffeine in them because they are processed more. When compared to coffee, tea typically has less then half the caffeine. White Tea 30-55mg Green Tea 35-70mg Oolong Tea 50-75 mg Black Tea 60-90mg Coffee 150-200mg