1. A cow has a belly, and tripe is the cow’s stomach. Cows are ruminants and have four stomachs. The first three stomachs are variations of the esophagus, namely the rumen (grass stomach), reticulum (honeycomb stomach, hemp stomach), omasum (double omasum, louver), and the last It’s the true stomach (abomastia).

2. The fleshy columns on the inner wall of the rumen are commonly known as "belly collar, belly beam, and belly kernel". The sphincter muscle of the cardia is thick and tough and is commonly known as " belly tip" or " belly head" (soak it in alkaline water to make it crispy and tender, and can be made into a dish separately). The cow serous membrane can be torn off in the rumen and the mucous membrane can be retained, sliced ??into slices and eaten raw, with dishes such as "Mao tripe hot pot" and "Couple's lung slices". Reticulum application is the same as for rumen. Most of the omasum and abomasum are cut into shreds. The most widely used types of tripe are tripe collars and louvers.