The Evolution of Yeast

Yeast is considered a domesticated species now it's at least brewer's yeast sachamacy cerevisiae. Yeast exists in the wild right but all of the characteristics that we've come to value as brewers like efficiently producing alcohol have happened because of humans. So are those genetically modified or are those genetically engineered and then you get into these more weeds like yeast made in the lab  and then not even talking about crisper and cast nine, he says.