Sheep casings are very tender and are used for sausages such as breakfast sausage, frankfurters, and fresh pork sausage. We prefer to use natural casings, like sheep casings, for our sausage. Most people agree that a natural casing gives the best flavor and appearance to the final sausage product. A natural sausage casing, like sheep casings, enhances the natural juices and quality of the meat and spices. Sheep casings permit deep smoke penetration if you are smoking your sausage.