Speaking of hairy belly, it is actually the third of the four stomachs of cattle. There are many lobules of different sizes in the stomach, and there is a thick membrane on the surface of the lobules. Cattle veneers on the market can be divided into fresh and dried ones, but both of them must be cooked before eating. If you cook it directly in the pot, it tastes like chewing rubber and is difficult to swallow-the hairy belly we usually eat in hot pot restaurants is cooked. Cattle louver for short.