Here’s another interesting post on brewing science from Popular Science‘s BeerSci series. If you’re reading the Bulletin, chances are you’re already pretty familiar with the question What Is The Difference Between A Lager And An Ale? But author Martha Harbison gives a good overview of the technical differences in layman’s terms and goes into yeast’s history. It’s a great tale, which she refers to hilariously as a “unicellular soap opera.”

“From Eubayanus to Pastorianus Ale yeast and yeast from the forests of Patagonia met in a brewery…and lager was born! Libkind et al., PNAS; August 2011”
Click here to see the chart full size.