A naturally preserved product needs special attention to maintain maximum freshness. After opening bag, remove air from package and reseal tightly. Use food within 30 – 45 days. Store in a cool, dry location. Refrigerate or freeze for extended storage.. When introducing a new food, begin with a mixture of "old and new" food, gradually increasing the amount of new food over a 7 to 10 day period. This will prevent digestive upsets as well as allowing your pet to adjust to something new. Adjust portions for proper weight maintenance and when feeding additional pets. Discard any uneaten food and clean dish before each feeding.