To use this cat food, simply serve it in your cat's food bowl. You can feed it according to your cat's age, weight, and activity level. Usually, follow the feeding guidelines on the package. As for storage, keep the bag tightly sealed in a cool, dry place to maintain freshness. When transitioning your cat to this new food, do it gradually over 7 - 10 days, mixing it with the old food in increasing proportions. If your cat has any special dietary needs or health issues, it's a good idea to consult your vet before starting this food. And always make sure your cat has access to fresh water at all times.