Why Proper Fermentation Mixing is Essential It’s a common myth that fermentations “self-mix" when in fact this is only true during the most active stages of fermentation. Recent research (Schwinn et al., 2019) has shown that without manual mixing, yeast can struggle to stay in suspension, causing yeast stress and other unwanted impacts. The Benefits of Mixing LIMIT STRATIFICATION Without mixing, yeast and nutrients can crowd the bottom of the tank, leading to different fermentation rates and progression in different parts of the vessel.  PREVENT OFF-AROMAS Ensuring even distribution of yeast and nutrients limits stress, reducing the risk of off-aromas like hydrogen sulfide, acetic acid, and acetaldehyde.  IMPROVE YEAST PERFORMANCE Even distribution of yeast and nutrients also keeps yeast healthy, active, and efficient, improving fermentation kinetics and tank turnover. WHEN TO MIX Mixing is most important during early fermentation and near the end. At both o