WY2124

This is the worlds “most widely used strain in the world”. Anyone have a semi-complete list? Besides Carlsberg… :wink:

Only homebrewers and micro brewers who get their yeast from wyeast.  Any large brewer will bank their yeast. Even if Wyeast got a slant from a banked brewers yeast it is likely to have mutated apart from the original strain.  [emoji6]
If you want some REAL strains check out hefebank.  https://www.hefebank-weihenstephan.de/

I dunno man, I’ve seen some fairly large breweries contract out their yeast needs.

Ok, so if they don’t bank they still fall under the first part.