Introduction

When formula is used alongside or instead of breast milk, preparing it correctly and keeping bottles clean are important for your baby's health. The goal is both the right consistency and safe preparation.

Basic Rules for Preparation

  • Clean your hands, the preparation surface and the bottle parts; for sterilizing, follow the instructions of your care team and the equipment manufacturer.
  • Measure the water first, then add the stated amount of powder using the scoop from the container. Do not change the ratio; do not add sugar or cereal.
  • Powdered formula is not sterile. Use safe drinking water, and keep in mind that bottled water is not sterile either.
  • In the WHO/NHS approach, standard powdered formula is mixed with water that has been boiled and has not cooled below 70 °C; it is then cooled to feeding temperature. The CDC particularly stresses the hot-water preparation step for babies younger than two months, babies born prematurely or babies with a weakened immune system.
  • If the product's temperature instructions differ from this method, especially for special medical formulas, confirm the preparation method with your care team before the first use. For babies at higher risk, ask about a suitable ready-to-feed liquid formula; no water is added to these products.

Temperature and Storage

  • Prepare each feed fresh if you can. Before feeding, check by dripping some onto your wrist; it should not feel hot.
  • Do not use a microwave.
  • Do not go past 2 hours from preparation or 1 hour from the start of the feeding; go by whichever comes first.
  • Formula that will not be used right away and has not touched your baby's mouth should be cooled quickly after preparing and put straight into a refrigerator at 4 °C or colder; use it within 24 hours. Do not leave it out for two hours to cool.
  • When the feeding is over, throw away what is left; do not store or rewarm it.
  • Follow the expiration date and the use-after-opening instructions on an opened container of powdered formula.

What Can Parents Do?

  • Feed your baby in a semi-upright position while making eye contact
  • Never prop the bottle on a pillow and leave your baby alone with it (choking risk)
  • Take breaks for burping during the feeding

When Should You See a Doctor?

  • If your baby vomits often or has diarrhea or constipation
  • If your baby refuses the formula or is not gaining enough weight
  • If there is a recurring rash, bloody stool, vomiting or another sign of a possible allergy, talk to your doctor; fussiness alone does not mean an allergy
  • If there is swelling of the tongue or throat, difficulty breathing, or sudden floppiness or unresponsiveness, call your local emergency number (112 in Türkiye)

Summary

Correct measuring, hygiene and a safe position are the cornerstones of bottle feeding. When you are unsure, go by your doctor's advice.

Sources

This app is not a substitute for medical advice, diagnosis or treatment. Always consult your doctor or pediatrician for decisions about your baby's health.