Sign up to our newsletter for 10% off your first order
Slider itemSlider item

Combi Feeding Made Easy:
Your Complete Guide to Breast + Bottle Feeding

Learn how to start combi feeding, introduce bottles, maintain breastfeeding, warm breastmilk safely, prepare formula, and simplify feeding routines with practical tips for real-life parents.

Download your FREE Combi Feeding Guide

What is Combi Feeding?

Combi feeding (also called mixed feeding) means feeding your baby with both breastmilk and formula. It can help families create a more flexible feeding routine while still continuing breastfeeding.

Inside the FREE Guide, you’ll learn:

  • When to start combi feeding

  • How to introduce a bottle

  • How to maintain milk supply

  • How to manage night feeds

  • How to simplify warming, sterilising and preparation

What’s inside your FREE Combi Feeding Guide?

Starting Combi Feeding Without Confusion

Combi feeding (also called mixed feeding) means feeding your baby with both breastmilk and formula. It can help families create a more flexible feeding routine while still continuing breastfeeding.

Keep Breastfeeding on Track

Simple ways to support milk supply while supplementing.

Make Bottle Feeding Easier

Tips for paced feeding, bottle introduction and creating routines.

Combi Feeding Setup

How to simplify warming, formula preparation, bottles and sterilising.

FAQ’s about Combi Feeding

When should I start combi feeding, and how do I introduce a bottle without confusing my baby?

Small, gradual changes work best once breastfeeding feels established, often around 4–6 weeks. Start with one bottle a day at a calm time (when baby isn’t overly hungry), keep your usual breastfeeds consistent to help maintain supply, use paced bottle feeding (in an upright position with pauses), and choose a slow-flow teat to reduce bottle preference. Keeping the bottle milk close to body temperature also helps the switch feel familiar.

How can I keep my milk supply on track while supplementing with formula?

Pump when your baby has a formula feed, offer the breast first if you’re topping up, and keep a consistent routine. Stay hydrated and choose a plan that supports your wellbeing. Combi feeding should reduce pressure, not add it.

How long can sterilised bottles stay sterile?

This depends on storage conditions and your sterilising method. Follow manufacturer instructions.

Feeling overwhelmed by breast + bottle feeding?

Download our FREE Combi Feeding Made Easy Guide for a simple step-by-step routine.

What’s the safest way to warm or defrost breastmilk, and why avoid microwaves?

Breastmilk is rich in antibodies and nutrients that can be damaged by overheating and microwave “hot spots.” Gentle, controlled warming protects milk quality. Baby Brezza Bottle & Breastmilk Warmer gently circulates warm water to keep milk evenly warmed and has a dedicated defrost setting for frozen milk, so it thaws gradually without overheating. Use warmed milk straight away (or within NHS guidance) and never refreeze thawed milk.

Can I mix breastmilk and formula in the same feed, and in what order should I offer them?

You can mix them, but many parents offer breastmilk first so none goes to waste. If you warm ready-to-feed formula, do so gently and evenly to maintain consistency when switching between breast and bottle. For powdered formula, the Formula Pro® Advanced prepares warm, correctly mixed bottles in as little as 15 seconds, handy when you’re juggling both feeding methods.

Do I still need to sterilise, and how can I simplify washing and night feeds?

Yes, the NHS recommends sterilising feeding equipment until at least 12 months. To streamline the routine, the Bottle Washer Pro® or Steriliser Dryer Advanced with the ‘SuperQuick’ cycle can clean, sterilise and dry bottles, teats and pump parts automatically; sterilised items can remain protected for up to 48 hours when stored correctly in the machine. Pair that with the Bottle & Breastmilk Warmer and Formula Pro Advanced® for night feeds. No measuring in the dark, milk safely warmed, and more sleep with less stress.

Ready To Make Combi Feeding Feel Simpler?

Get your FREE Guide:
Combi Feeding Made Easy: Calm, Flexible and Doable

  • Starting combi feeding

  • Breastfeeding & formula tips

  • Bottle introduction advice

  • Milk warming guidance

  • Night feeding shortcuts

Visit babybrezza.co.uk for more information