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Can I add new breastmilk to refrigerated breast milk?

Can You Add New Breast Milk to Refrigerated Breast Milk?
When it comes to the safe storage and handling of breast milk, many parents have questions about combining freshly expressed milk with milk that has already been refrigerated. Understanding the proper procedures is crucial for ensuring the health and safety of your baby.
The Importance of Temperature Control
The primary concern when mixing breast milk is the temperature. According to guidelines from health experts, you should never add warm breast milk directly to cold refrigerated breast milk. This is because combining milk at different temperatures can create an environment where bacteria can thrive, potentially compromising the safety of the milk.
To safely combine freshly expressed milk with refrigerated milk, the freshly pumped milk must first be cooled to the same temperature as the refrigerated milk. This means that after expressing, you should place the new milk in the refrigerator until it reaches a similar temperature before mixing it with the previously stored milk.
Storage Guidelines
Breast milk can be safely stored in the refrigerator for up to four days at a temperature of around 40°F (4°C). It’s essential to chill the milk right after expressing to maximize its freshness and safety. If you are collecting milk throughout the day, it is advisable to store each session’s milk separately in the refrigerator until you are ready to combine them.
Best Practices for Combining Milk
When combining breast milk from different pumping sessions, ensure that:
– The milk is from the same day. Mixing milk from different days is not recommended due to varying bacterial loads and freshness.
– You follow proper cleanliness protocols during pumping and storage to minimize contamination risks.
If you have any doubts about the safety of the milk, it’s always better to err on the side of caution. Discard any milk that appears off or has been stored improperly.
In summary, while you can combine freshly expressed breast milk with refrigerated milk, it is vital to ensure that the new milk is cooled to the same temperature as the refrigerated milk before mixing. This practice helps maintain the safety and quality of the milk, ensuring that your baby receives the best nutrition possible.

Can I add fresh breastmilk to refrigerated breastmilk?

Yes, you can add your fresh pumped breast milk to. refrigerated breast milk that’s already in the fridge. That’s a new update from CDC that we can mix the milk. And that’s fine. Just keep in mind. if you add milk today to milk you pumped yesterday, you have to default your timeframe to the oldest milk.

How long can you mix refrigerated breast milk from different days?

It’s okay to combine milk that’s pumped on the same day, but don’t mix milk that was pumped on different days. Some moms use the “pitcher method,” which means they store all the breast milk they pump over 24 hours in one refrigerated, closed container.

Can I pump into the same bottle all day?

Milk stays good for 4 hours if you leave it at room temperature after pumping. So, you can pump into the same bottle within the 4 hours timeframe. Once the 4-hour timeframe has elapsed, you can either give the milk to your baby or store it in the fridge or freezer for future meals.

Can you put breastmilk back in fridge if not finished?

The same goes for breast milk. If, after feeding your baby, you’re left with half or a quarter of a bottle, you can reuse it, but only if you’re going to do so quite soon. The CDC advises reusing leftover breast milk within two hours of the last feeding. If it’s longer than two hours, you should throw it away.

Does breast milk have to be the same temperature before mixing?

The American Academy of Pediatrics previously stated: “Mothers can mix warm milk and cold, or even consider pooling milk from 24 hours together, which may help even out variability in nutrients due to pumping time or breast emptying (which influences fat content of the milk).”

Can you mix pumped breast milk from different sessions?

If you pumped both breasts at once and the total amount of milk will fill one bottle no more than two-thirds full, you may combine the contents in one bottle by carefully pouring the milk from one sterile container into the other. Don’t combine milk from different pumping sessions when pumping for a high-risk baby.

Can you mix fresh breast milk with refrigerated formula?

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.

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 I mix left and right pumped milk?

Combine the milk expressed from the right and left breasts into one container, seal it, and cool it. Let’s call the milk from this pumping session milk 2. Once cooled, you can pour milk 2 into the container of milk 1. If this is enough for a full feeding, great!

Can you keep adding to breast milk in the fridge?

You can add freshly expressed breast milk to refrigerated or frozen milk. However, thoroughly cool the freshly expressed breast milk in the refrigerator or a cooler with ice packs before adding it to previously chilled or frozen milk.

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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