Tripe's a type of edible offal from the stomachs of various farm animals. Description Beef tripe's usually made from only the first three chambers 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's seen much less frequently, owing to its glandular tissue content. Tripe's also produced from sheep, goats, pigs, and deer. Unwashed (or "green") tripe includes some of the stomach's l… (More on Tripe)