Tripe is a type of edible offal from the stomachs of various domestic animals.
Beef tripe is usually made from only the first three cow
's stomachs: the rumen
(blanket/flat/smooth tripe), the reticulum
(honeycomb and pocket tripe), and the omasum
(book/bible/leaf tripe). Abomasum
(reed) tripe is seen much less frequently, owing to its glandular tissue content. Tripe is also produced from sheep
, and deer
Unwashed (or "green") tripe includes some of the stomach's last content, smells very unappetizing and is unsuitable for human consumption. But this content is desirable to dogs and many other carnivores
and is often used in dog food. It is called "green," although its colour is often brown or grey because of its high chlorophyll content from undigested grass.