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Can you mix thawed breastmilk with refrigerated milk?

Mixing Thawed Breast Milk with Refrigerated Milk: What You Need to Know
When it comes to feeding your baby, ensuring the safety and quality of breast milk is paramount. A common question among breastfeeding parents is whether it is safe to mix thawed breast milk with refrigerated milk. The answer is nuanced and requires an understanding of breast milk storage guidelines.
The Risks of Mixing Milk
Mixing thawed breast milk with freshly expressed or refrigerated milk is generally not recommended. The primary concern is that combining these two types of milk can lead to the rewarming of the older, thawed milk. This process can compromise the milk’s quality and safety, as it may allow bacteria to grow. According to the CDC, mixing freshly expressed milk with already cooled or frozen milk can rewarm the older stored milk, which is not advisable.
Best Practices for Mixing Milk
If you find yourself in a situation where you need to combine different batches of breast milk, there are specific guidelines to follow. For instance, if you want to mix fresh milk with previously pumped milk, it is crucial to ensure that the fresh milk is cooled first. Placing freshly expressed milk in the refrigerator until it is cold before adding it to frozen milk can help mitigate some risks.
Moreover, when thawing breast milk, it is important to handle it with care. The fatty components of breast milk can separate during the thawing process, and gently mixing them back in is acceptable. However, this should be done without introducing any warm milk into the mix.
Conclusion
In summary, while it may be tempting to mix thawed breast milk with refrigerated milk for convenience, it is essential to prioritize safety. Avoid mixing these two types of milk unless the fresh milk has been properly cooled first. By adhering to these guidelines, you can help ensure that your baby receives the safest and highest quality nutrition possible.

Can you mix yesterday’s breastmilk with today’s?

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.

Why is thawed breast milk only good for 24 hours?

Bacteria can grow rapidly in thawed milk, especially if it’s kept at room temperature or if the storage conditions are not optimal. Using the milk within 24 hours minimizes the risk of bacterial growth and ensures the milk is safe for your baby.

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).”

What happens if you mix warm breast milk with cold breastmilk?

The answer given by the CDC and the Academy of Breastfeeding Medicine is that combining milk “can rewarm the older stored milk.” That’s it. That’s the answer. No other risks are identified. No research is cited by any sources to indicate that there are additional risks or concerns to be aware of.

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 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 premix and refrigerate formula?

Prepared infant formula can spoil if it is left out at room temperature. Use prepared infant formula within 2 hours of preparation and within one hour from when feeding begins. If you do not start to use the prepared infant formula within 2 hours, immediately store the bottle in the fridge and use it within 24 hours.

What is the 444 rule for breast milk?

The 4-4-4 Rule. Or the 6-6-6 rule. Basically, breast milk is good at room temperature for 4 or 6 hours, in the refrigerator for 4 or 6 days, and in the freezer for 4 or 6 or 12 months. Different professional organizations have varying recommendations.

Can you mix refrigerated breast milk with thawed breast milk?

Mixing freshly expressed breast milk with already cooled or frozen milk is not advised because it can rewarm the older stored milk. It is best to cool freshly expressed milk before combining it with older, previously cooled or frozen milk. Also consider storage duration guidelines for breast milk.

Can I mix refrigerated breast milk with refrigerated formula?

“One question I often get is whether or not you can add fresh breast milk to milk that’s been in the fridge or freezer,” says Pawlowski. “As long as the new milk is chilled completely in the refrigerator before the two are added together, then it’s OK.”

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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