> YES! adding cows lung to make the burgers a nice bloody red colour to make them more appetising. Please don't spread disinformation. This is not a thing tha

> YES! adding cows lung to make the burgers a nice bloody red colour to make them more appetising. Please don't spread disinformation. This is not a thing that restaurants do, fast-food or not. And fast-food burgers aren't even meant to be red because they're cooked well-done.