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How long after defrosting breastmilk should you use it?

Understanding the Timing for Using Defrosted Breast Milk
When it comes to the delicate process of thawing and using frozen breast milk, timing is crucial to ensure the safety and nutritional quality for your baby. After defrosting breast milk, it is important to adhere to specific guidelines to maximize its benefits while minimizing any potential risks.
Thawing Process and Immediate Use
Breast milk can be safely thawed in several ways, with the refrigerator being the most recommended method. This process typically takes about 12 hours, depending on the volume of milk being thawed. Once the milk is fully defrosted, it should be used within 24 hours if kept in the refrigerator. This timeframe ensures that the milk remains safe and retains its nutritional properties.
Warming and Serving
If you choose to warm the defrosted breast milk, it is advisable to do so gently. The best practice is to warm it using lukewarm water over a period of about 20 minutes. After warming, the milk should be consumed immediately. If your baby does not finish the bottle, any leftover milk should be discarded and not reused, as bacteria can proliferate once the milk has been warmed.
Storage Considerations
It’s also important to note that once breast milk has been thawed, it should not be refrozen. This is a critical point to remember, as refreezing can compromise the quality and safety of the milk. If you find yourself with thawed milk that you cannot use within the 24-hour window, it’s best to discard it to ensure your baby’s health.
In summary, after defrosting breast milk, aim to use it within 24 hours if stored in the refrigerator, and always prioritize safe warming practices to provide the best nutrition for your little one.

What is the 120 pumping rule?

The first 12 weeks of your breastfeeding journey requires frequent breastmilk removal, stimulating healthy milk production. Studies show moms who exclusively pump for a minimum of 120 minutes per day can make enough to feed their babies primarily breastmilk.

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.

How to know if breast milk is spoiled?

Human breast milk can spoil just like any other kind of milk. This leads to a sharp, sour smell and flavor. There’s no way to save spoiled milk. You should be able to tell it’s spoiled by tasting a sip of it yourself.

How long can breastmilk sit out after thawed?

Don’t leave frozen breast milk to defrost at room temperature. Once fully thawed, previously frozen breast milk may be kept at room temperature for a maximum of two hours or in the refrigerator for up to 24 hours. Don’t thaw or heat frozen breast milk in a microwave or in boiling water.

How soon after defrosting breast milk should you use it?

The recommendation is to use it within 24 hours once it’s completely thawed. It’s still considered frozen if there are any ice crystals. Most of the rules around breastmilk are very conservative because there isn’t a lot of research to say what is truly safe.

How long does frozen breast milk last thawed?

Use milk within 24 hours of thawing in the refrigerator (from the time it is completely thawed, not from the time when you took it out of the freezer). Use thawed milk within 2 hours of bringing to room temperature or warming. Never refreeze thawed milk.

How to know if breastmilk is spoiled?

It will also smell bad, much like spoiled cow’s milk. And, like spoiled cow’s milk, breast milk that’s old will taste sour. (It’s fine to taste your breast milk to check!) Always label your pumped milk with a time and date so you can tell how old it is.

How long will frozen milk last after defrosting?

Depending on the size of the container, it may take a day or longer to defrost. And once thawed, it’s best to use the milk within several days. You might notice that the thawed milk is separated or looks like it has a grainy texture. This goes for both dairy milk and plant-based milks.

Can you refreeze partially thawed breast milk?

Frozen breast milk that has started to thaw but still contains ice crystals can be refrozen. If your breast milk has completely thawed but still feels cold, put it in the refrigerator and use it within the next day or throw it away. Thawed milk cannot be refrozen. After 24 hours, throw out unused, thawed milk.

Why is breast milk only good for 2 hours after thawed?

There are white blood cells and antibodies in the milk along with fats/ proteins etc. That’s why it’s good for 4-6 days in the fridge. Once frozen, those living parts die. Re-freezing can further damage the milk and since the antibodies/WBCs aren’t there, can make it way easier for bacteria to grow when it’s thawed.

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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