To use this Oxbow organic guinea pig food, simply put an appropriate amount in your guinea pig's food bowl daily. You can adjust the quantity according to your pet's age, size, and activity level. Make sure to always provide fresh water alongside the food. As for storage, keep the food in a cool, dry place to maintain its freshness. Avoid exposing it to direct sunlight or high humidity. Check the expiration date regularly and discard any food that has passed its prime. When you first introduce this food to your guinea pig, do it gradually over a few days to let your pet get used to the new taste and texture. If you notice any changes in your guinea pig's behavior or health, consult your veterinarian.