Urine used to make cheese? UL?

hi there. I heard a rumour that back in the early days, blue cheese was made by using urine in their process. Is this true and if so why was it so?

That’s a wonderful question kittykat!

A quick search doesn’t turn up anything on Blue cheese specifically, but apparently cheesemakers do (or did) sometimes use urine:

Cheesemaking in Scotland

LIQUID GOLD: The Lore and Logic of Using Urine to Grow Plants