Oatmeal/ rice cereal in bottle

Mama of 3 • Wife & Mama of 3 ASD supporter 🧩 2 princes🤴 1 princess 👸🏻 Coffee ALWAYS ☕️

So the pediatrician recommended adding cereals to his bottle once a day to help him gain some weight ( go off of doc recommendation and what we personally chose to do). My question is if my LO doesn’t finish his bottle with the cereal in it can we refrigerate just like a normal bottle and fed it to him later ( within 24hrs). Or does it have to be discarded right away. It doesn’t say anything about it on the cereal only heating instructions.