Useful practitioner synthesis; exact mechanisms and operating ranges should defer to technical sources.
The section rejects a one-variable explanation of yeast flavor by locating fermentation inside a larger production system.
Practitioner testimony links fermentation outcomes to mash composition, water-to-grain ratio, sugar concentration, yeast and bacteria, temperature, pH, oxygen, nutrients, agitation, fermentation time, and handling before distillation.
PDF sheet 100
PDF sheet 99
Fermentation
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