does formula need to be warm
6. It's fine to give your baby room temperature or even cold formula. If your baby prefers warm formula: 1  Place a filled bottle in a bowl or pan of hot, but not boiling, water and let it stand for a few minutes â or warm the bottle under running water.2  Shake the bottle after warming it.arm the formula, if needed. It's fine to give your baby room temperature or even cold formula. If your baby prefers warm formula: 1  Place a filled bottle in a bowl or pan of hot, but not boiling, water and let it stand for a few minutes â or warm the bottle under running water. 2  Shake the bottle after warming it.