Does 95 percent dark chocolate have caffeine? The definitive breakdown
                                
                                
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                                    4 min read                                
                            
                                Yes, dark chocolate contains caffeine, and the percentage matters. A 1 oz serving of dark chocolate with 90% or higher cocoa can contain up to 45 milligrams of caffeine, so does 95 percent dark chocolate have caffeine? Absolutely, and in a notable amount.