Bernadette studies YEAST,
the organism responsible for Michelob Light.
The Big Bang Theory Season 4, Episode 24
Yeah, they say the YEAST in beer
helps with milk production.
The Big Bang Theory Season 10, Episode 22
In microbiology, the most exciting thing
I get to work with is YEAST.
The Big Bang Theory Season 3, Episode 10
go talk to that skinny YEAST factory
of a girlfriend you got.
Breaking Bad Season 2, Episode 3