How Much Caffeine Is in Passion Fruit Green Tea?
                                
                                
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                                    5 min read                                
                            
                                On average, a standard 8-ounce cup of green tea contains between 20 and 50 milligrams of caffeine, and adding passion fruit does not alter this amount. The exact caffeine level in your passion fruit green tea depends entirely on the type of green tea base and its preparation.