https://abcnews.go.com/blogs/health/2012/02/01/mcdonalds-announces-end-to-pink-slime-in-burgers/ https://abcnews.go.com/blogs/health/2012/02/01/mcdonalds-ann...

https://abcnews.go.com/blogs/health/2012/02/01/mcdonalds-announces-end-to-pink-slime-in-burgers/ https://abcnews.go.com/blogs/health/2012/02/01/mcdonalds-ann... I believe the big "Pink Slime" news story halted some of this, or at least led to many fast food companies publicly decrying it. But there was definitely a point when this ammonium hydroxide treated slurry was used to cut the real stuff.