How Long Are Special K Bars Good For? Decoding Shelf Life and Freshness
                                
                                
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                                    4 min read                                
                            
                                A manufacturer shelf life for commercial Special K bars is often 365 days, but this is a 'Best If Used By' date indicating peak quality. The question of how long are special K bars good for depends heavily on whether they are store-bought or homemade.