Ready to Feed Baby Formula Preparation and Storage

How to Prepare Ready To Feed Formula

Preparing Similac® Ready To Feed formula is easy. Shake bottle well before opening, then just twist off the cap — no powder mixing or measuring — and the formula is ready for your baby.

How to Warm Formula

Formula doesn't need to be heated. If you choose to feed warmed formula, don't microwave it. It can cause "hot spots" that could burn your baby. Instead, set the filled bottle in a bowl of warm (not boiling) water or hold the bottle under warm tap water. Sprinkle a few drops on the inside of your wrist to make sure it’s not too hot.

How to Store Ready To Feed Formula

For 2-fl-oz nipple-ready bottles and 8-fl-oz nipple-ready bottles:
Store unopened containers at room temperature; avoid extreme temperatures. Do not reuse bottle. Protect from light. Store in carton until ready to use.

For 32-fl-oz bottles:
Once opened, store quart bottle in refrigerator. Once prepared, store bottles in refrigerator and feed to baby within 48 hours. Store unopened containers at room temperature; avoid extreme temperatures. Do not reuse container.

See the label for specific instructions

Reusing Formula

If your baby doesn’t finish a bottle of formula within one hour, toss the leftover. Don’t save it for later. During a feeding, your baby's saliva can contaminate the formula in the bottle. Once this occurs, reheating or refrigerating won’t kill the bacteria.

If you warm the formula, and your baby decides not to take it, don’t refrigerate it and reheat it again later. Throw it out instead.