What Does Buttermilk React With? The Essential Chemistry of Cooking
                                
                                
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                                    4 min read                                
                            
                                Over 90% of commercial buttermilk is cultured, meaning it contains live lactic acid bacteria that give it its signature tangy flavor. This acidity is the key to understanding what does buttermilk react with, driving chemical reactions that are crucial for baking, marinating, and other culinary applications.