Food begins to deteriorate when exposed to oxygen in air, and loses nutritional value. Although slight to begin with, this rate of deterioration increases with time. To ensure your dog is getting the best from his or her food it needs to be fresh, or packed in a manner that excludes oxygen. At Ultimate Feeds we manufacture in batches, not a continuous process, to keep it ultra fresh. Our product is in the retailer’s hands usually within a few days of manufacture!