What Kills Kefir Grains and How to Avoid It
                                
                                
                                •
                                
                                
                        
                                    
                                    4 min read                                
                            
                                Kefir grains are a complex symbiotic colony of beneficial bacteria and yeasts that, with proper care, can thrive for years. Despite their resilience, many common mistakes can kill kefir grains, halting their fermentation and potentially ruining your batches.