Is Trader Joe's Sourdough Bread Real Sourdough Bread?
                                
                                
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                                    5 min read                                
                            
                                According to one recent review, Trader Joe's 'San Francisco Style Sourdough' is so popular it can occasionally sell out, but does this popularity equate to authenticity? The answer is complex, as not all of Trader Joe's sourdough offerings are made using a traditional, commercial-yeast-free process.