PURE is easy to serve. Our food is frozen in our kitchen to lock in freshness. When PURE arrives at your home, simply store it in the freezer until you’re ready to thaw. At mealtime, feed your dog the serving size recommended, and refrigerate the remaining food for your dog’s next meal. PURE, like the food we cook for ourselves and our families, contains no preservatives. Once PURE has been defrosted, please use within 5-7 days.