How Much Caffeine is in 240ml of Black Coffee?
                                
                                
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                                    3 min read                                
                            
                                According to the U.S. Department of Agriculture (USDA), a standard 8-ounce (240ml) cup of brewed black coffee contains approximately 96 milligrams of caffeine. However, this figure is just an average, and the actual amount of caffeine in 240ml of black coffee can vary widely depending on several factors, from the bean type to the brewing method.