Here is a tip about natural pig casings. How to turn your casings inside out. There are two reasons for this. One-to clean the casing (even though they are already cleaned when you purchase them) and two for presentation. Please forgive me for not knowing the proper names but you know the little white lines on the outside of the casings, they will no longer be visible. Here are a few qview's of the process. It very quick and easy. If you have any questions please ask. Andy.