I saw one of those re-enactment shows about life in the Medieval Era. The host was preparing wool with urine, by stomping his feet on the wool in a bucket of urine, and he was overwhelmed by the ammonia smell from the urine.
Colonial Williamsburg they discussed the wool/ urine process. Glad they didn’t reenact it. Watching them make muskets was fascinating though.
Me too. Was it Tony Robinson in “The Worst Jobs in History” series? They also used old urine for tanning leather.
Geez...it is making my stomach turn just thinking of it!