What is the Starbucks Summer Berry made of?
                                
                                
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                                    3 min read                                
                            
                                According to Starbucks' official description, the Summer-Berry Refresher is a sweet and summery blend of raspberry, blueberry, and blackberry flavors. It is made primarily from a proprietary juice base, shaken with ice, and poured over raspberry-flavored pearls.