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Can you mix breast milk and formula and store in the fridge?

Mixing Breast Milk and Formula: What Parents Need to Know
In the world of infant feeding, the question of whether to mix breast milk and formula often arises, especially among parents navigating the transition from exclusive breastfeeding to incorporating formula. The good news is that mixing breast milk and formula is not only possible but also a common practice among caregivers. However, there are important guidelines to follow to ensure the safety and health of your baby.
Can You Mix Them?
Yes, you can mix breast milk and formula in the same bottle. This practice can be particularly beneficial for parents who wish to extend the duration of breastfeeding while gradually introducing formula. It allows babies to receive the nutritional benefits of breast milk even as their feeding routine changes .
Storage Guidelines
When it comes to storing mixed milk, there are specific recommendations to keep in mind. If your baby has not yet taken a sip from the bottle, the mixed contents can be stored in the refrigerator for up to 24 hours. This aligns with the Centers for Disease Control and Prevention (CDC) guidelines for formula storage.
However, if your baby has started feeding from the bottle, the mixture should be consumed within one hour to prevent any risk of bacterial growth. This is crucial for maintaining the safety of the milk, as once the baby begins feeding, the environment inside the bottle changes.
Preparing the Mixture
When preparing to mix breast milk and formula, it’s essential to ensure that the breast milk is completely chilled before combining it with formula. This practice helps maintain the integrity of the breast milk and ensures that the mixture is safe for your baby.
Additionally, freshly pumped breast milk can be stored at room temperature for up to four hours, in the refrigerator for up to four days, and in the freezer for up to six months. These storage times are important to remember when planning your feeding schedule.
Best Practices
While mixing breast milk and formula is safe, some experts recommend feeding breast milk first, followed by formula. This approach can help babies adjust to the taste and texture of formula gradually. Consulting with a pediatrician can also provide personalized guidance on the best ratios and practices for mixing breast milk and formula, ensuring that your baby receives the right nutrition during this transitional phase.
In conclusion, mixing breast milk and formula can be a practical solution for many families. By following proper storage guidelines and preparation methods, parents can confidently navigate this feeding approach, ensuring their little ones receive the best possible nutrition.

Can you mix breastmilk and formula and store in the fridge?

You can mix them. It’s good for up to 24hrs once mixed because that’s the max fridge time for prepared formula. My son was eating a mix of formula-fortified breast milk (for additional calories) and formula before I weaned completely.

How long is formula good after being mixed?

Yes, as long as your baby doesn’t drink from the bottle. An unused bottle of formula mixed from powder can last up to 24 hours in the fridge. That’s why many parents opt to make a larger batch of formula in the morning and portion out into bottles — or pour into bottles as needed — for use throughout the day.

Is it okay to combo feed breastmilk and formula?

It can take several weeks for you and your baby to feel happy and confident with breastfeeding. Once you’ve both got the hang of it, it’s usually possible to offer your baby bottles of expressed milk or formula alongside breastfeeding. This is sometimes called mixed or combination feeding.

How far in advance can you mix formula and breastmilk?

Likewise, a refrigerated bottle of formula mixed with breast milk should be used or discarded within 24 hours. While a bottle of room temperature breast milk is good for up to 5 hours, a bottle of formula or breast milk mixed with formula should be discarded after 1 hour from the start of use.

How long can you refrigerate formula after mixing?

24 hours
If you prepare formula ahead of time, store it in the refrigerator. You can use pre-made formula for up to 24 hours. Open containers of ready-made formula, concentrated formula, and formula prepared from concentrate can be stored safely in the refrigerator for up to 48 hours.’);})();(function(){window.jsl.dh(’56VoZ4OGGsjgseMPycXM-AI__35′,’

Can you premix formula and breastmilk bottles?

Remember that any amount of breast milk is beneficial for your baby, and combining formula with your milk in the same bottle can be safe and convenient. Just be sure you’re mixing it correctly so your baby gets the best (and safest) nutrition every time.

What is the 5 5 5 rule for breast milk?

Something I recommend to moms is the 5-5-5 rule. Try and use milk within five hours at room temperature, five days in the fridge, and by five months in the freezer.

Is it OK to go back and forth between formula and breastmilk?

The good news is that feeding your baby breast both milk and formula is safe. In some cases, it’s the best option. There are a few ways to combo feed: Go back and forth between breastfeeding and formula bottles.

Why is mixed feeding not recommended?

If your mixed feeding involves exchanging some breastfeeds for baby formula, then your baby will not receive as many benefits as they normally would if they were exclusively breastfed. As such, their immune system may not be as well protected from certain infections1.

Can you make formula and store in the fridge?

If the formula that you made up at home is stored: in a fridge – use within 24 hours. in a cool bag with an ice pack – use within 4 hours. at room temperature – use within 2 hours.

Natasha Lunn

Tash is an IBCLC and Business Coach helping fellow IBCLCs create fun, profitable businesses that are more than just an expensive hobby. Before becoming an IBCLC and starting her private practice - The Boobala, Tash graduated as an Osteopath in 2008 and has been in Private Practice in South West Sydney. She was also a volunteer Breastfeeding Counsellor and Community Educator with the Australian Breastfeeding Association for 6 years. Through her business, Your Lactation Biz, Tash coaches and creates products to help new and seasoned IBCLCs build businesses that suit their personality and lifestyle.

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