Keep the sausage cool and dry. After opening, the sausage can be kept in the refrigerator for a maximum of five days (if properly packaged). If the sausage does not go up in one go, despite the fact that your dog likes it so much, you can also temporarily freeze the rest of the sausage after opening. Cut the sausage into pieces before freezing, so that you only have to thaw a small part at a time.