I think that commenter meant Beef Products Inc that treated its beef with ammonia: https://en.wikipedia.org/wiki/Beef_Products https://en.wikipedia.org/wiki/Be

I think that commenter meant Beef Products Inc that treated its beef with ammonia: https://en.wikipedia.org/wiki/Beef_Products https://en.wikipedia.org/wiki/Beef_Products "BPI was a major supplier to McDonald's and Burger King, as well as restaurants and grocery stores, and its products were reportedly used in 75% of the United States' hamburger patties in 2008. The School Lunch Program, another large buyer of Beef Product's goods, used about 5.5 million pounds in 2009."