# Yeast population growth

I started educating beer judges two months ago and the upcoming topic will be 'fermentation'. This peaked my curiosity a little. I do have two text which cover this. This is Heinrich Lüers "Wissenschaftliche Grundlagen von Mälzerei und Brauerei" and White and Zainasheff "Yeast". Lüers is more of a basic science text, written in 1950, while White is specifically aimed at the ambitious homebrewer and maybe the microbrewer. Let's review Lüers most important ideas. Yeast population growth Lüers give for the population growth:  N_f = N_…