Pink Slime is used as a filler, or to reduce the overall fat content of ground beef, and is produced by processing meat by-products such as cartilage, connective tissue and sinew. The recovered beef material is then processed, heated, and
treated with gaseous ammonia
to kill E. coli, salmonella, and other harmful bacteria. After coming in contact with water in the meat, the gaseous ammonia forms into ammonium hydroxide.