To use this Oxbow Garden Select Adult Guinea Pig Food, simply fill your guinea pig's food bowl with an appropriate amount each day. You can refer to the feeding guide on the package for the right quantity based on your pet's age and weight. Keep in mind that fresh water should always be available for your guinea pig. When it comes to storage, store the food in a cool, dry place. Make sure the bag is sealed tightly after each use to keep the food fresh. Check the expiration date regularly. If you notice any signs of spoilage, like an odd smell or mold, don't feed it to your guinea pig. This food is designed for adult guinea pigs over 6 months old, so don't give it to younger guinea pigs. If your guinea pig has any special health conditions, it's a good idea to consult your vet before starting this food.