Using this Weruva canned cat food is easy. Just open the 3.0 oz can and serve it directly to your cat. You can serve it at room temperature, or if your cat prefers, you can warm it up slightly in the microwave (be sure to stir well and check the temperature to avoid burning your pet). As for storage, once opened, cover the can and keep it in the fridge. Use the leftovers within 2 - 3 days. There are no special maintenance requirements for this product. However, always make sure your cat has access to fresh water. If your cat has any specific dietary sensitivities or health issues, it's a good idea to consult your vet before introducing this new food.