Freeze dried offers a convenient, easy way to supplement raw into your cat's diet. Northwest Naturals Freeze Dried Raw Diet Cat Food features meat from the finest natural food stores. Meats are chopped and undergo a quick freezing process to maintain ingredient quality. These recipes are in nugget form making them easy to feed- simply pour straight from the bag. This convenient raw formula has a shelf life of 2 years unopened or 1-2 months opened and stored properly.