I use to work at bpi. That place where pink slime is made. When we use to make the chips for McDonald’s they added ammonia to the batch. Iirc McDonald’s, Taco Bell and another company we would add ammonia to the product. Burger King was the only one we wouldn’t add it to. This was years ago so they might have changed but I doubt that. Can’t make money selling the good stuff to people.
maybe it helps to abolish miscreant bacteria to clean the system......but it does seems sinister....probably not so different from ingesting alcohol from spirit which people indulge in regular habit, or worse, some disgusting low-end vice like meth or other chemical narcotics!