Tripe is a type of edible offal from the stomachs of various domestic animals. Description Beef tripe is usually made from only the first three of a cow's stomach, 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, goats, and pigs. Unwashed (or "green") tripe includes some of the stomach's last con… (More on Tripe)