Rotten food scrap is a food item that can be found around the MPO colony, primarily in trash cans and dumpsters. Scraps are usually found in a decent quantity of about 2-4, but only satisfy 10 hunger. In addition, consuming a rotten food scrap is guaranteed to contaminate Albert West by a set amount based on difficulty: 15, 24, 30, or 45 for Easy, Normal, Hardcore, or Nightmare, respectively. Due to this, it is not generally recommended to even loot scraps, let alone consume them, since they can't even be recycled. If you are desperate for food, consuming food that the Biosphere produces may be a better option.