(* - The reverse is not true. Be careful out there.)

Niu bie is a kind of soup made from the partially digested food found in a cow's rumen, the largest chamber in a cow's stomach.

Before cooking niu bie, fine grass and herbs are fed to the cattle in advance. After the animals are slaughtered, the undigested food in the stomach is removed and a green smelly liquid is squeezed out of it. Then herbs and condiment like ox gall, Chinese prickly ash, ginger, orange peels and bay leaves are added to the mix, which is then boiled into the hot pot broth.