How Long Does Breast Milk Last After Being Heated? Here’s the Explanation

In addition to direct breastfeeding, pumping breast milk and storing it in the freezer becomes a routine in your breastfeeding journey. To keep milk production smooth and consistent, regular pumping is necessary. Then you can feed your baby using a bottle or store it in the freezer as stock. When needed, you simply warm the stored breast milk in the freezer before giving it to your little one. So, how long does breast milk last after being heated?

To find out the answer, let’s go through the explanation below.

Know the Storage Duration of Breast Milk Based on Its Medium

Before discussing how long breast milk lasts after being heated, you should know there are several safe storage options for expressed breast milk that help protect its nutrients.

When storing breast milk at room temperature, in a cooler bag, refrigerator, or freezer, make sure it is kept in a sealed container, such as a glass bottle, BPA-free plastic bottle, or special breast milk storage bag.

At room temperature, expressed breast milk stored in a sealed container can last 6–8 hours. Storage in a cooler bag lasts longer than at room temperature, up to 24 hours.

Most breast milk, however, is stored in the refrigerator, as it can last up to 5 days at a minimum refrigerator temperature of 4°C. If you freeze breast milk in the freezer at -18°C, it can last much longer, from 2 weeks up to 6 months. Note: never refreeze breast milk that has already been heated.

Whichever storage method you choose, always label the container with the date it was expressed and when reheating, use the oldest milk first.

How Long Does Breast Milk Last After Being Heated?

The process of storing and giving breast milk cannot be done carelessly. There are procedures that must be followed to maintain the quality of breast milk, including knowing how long breast milk lasts at room temperature after being heated.

Yes, heated breast milk has a time limit, so you cannot give it to your baby whenever you want. So, how long does breast milk last after being heated?

Freshly expressed breast milk stored in a sealed container can last at room temperature for up to 4 hours without heating. However, if possible, freshly pumped breast milk is best given directly to the baby because its nutrients and immunological benefits are higher.

To thaw frozen breast milk, you can use an electric breast milk warmer, place it in a pan of warm water then let it sit, or place the container under running water starting with cool water then warm water. Do not heat breast milk using a microwave as it damages nutrients and can be harmful to the baby.

Heated breast milk ready for consumption should be given to the baby immediately because it only lasts 2 hours (at room temperature above 25°C). This time limit exists because warm room temperatures provide an ideal environment for bacteria to grow.

If breast milk remains after being heated and given to the baby, it should not be consumed and should not be refrozen or refrigerated again.

What is the Best Way to Handle Breast Milk that Has Just Been Heated?

Once you take breast milk out of the refrigerator or freezer, warm it using one of the methods mentioned above or let it reach room temperature. Give the breast milk to your baby within 2 hours, not more, using a baby bottle. Any leftover breast milk should not be put back in the refrigerator or refrozen.

You need to know that bacteria can grow in heated breast milk if left too long. Babies are more vulnerable to exposure and may not be able to fight illness or infection since their immune systems have not yet developed sufficient antibodies.

Trust HEGEN as a Safe and Practical Breast Milk Storage Solution

For storing breast milk for your little one, you can trust reliable breast milk storage products from Hegen. One of the products you can use is the Hegen PCTO 150 ml/5 oz Breastmilk Storage PPSU, which can store a generous amount of pumped breast milk.

Hegen breast milk storage bottles are made of PPSU (Polyphenylsulfone), a combination of glass and plastic. They are BPA-free, lightweight, and provide safe storage for breast milk.

These bottles can withstand temperatures from -20°C to 180°C, so you do not need to worry about damage when used in the refrigerator or when heating breast milk.

Besides being useful for storage, Hegen multifunctional bottles can also be used as breast pump containers by simply replacing the cap with an adapter. After storing and heating, you can directly feed your baby with the same bottle.

Just attach a teat from Hegen with a milk flow suitable for your baby’s age. Newborns up to 1 month can use extra slow flow, slow flow is for 1–3 months, medium flow is for 3–6 months, and fast flow teats are for babies over 6 months old.

That is all the information about how to warm breast milk and how long breast milk lasts after being heated. By understanding this, you can ensure your baby always gets the best nutrition for healthy growth and development.

To support your breastfeeding journey, Hegen Indonesia provides all the baby care essentials you need, easily available on the official Hegen Indonesia website. Explore Hegen’s collection now to make breastfeeding easier, enjoyable, and sustainable.

References

Tanya Alodokter. Berapa Lama Kekuatan Asi Setelah Dihangatkan? https://www.alodokter.com/komunitas/topic/asi-pumping.

breastfeedingconfidential.com. How Long Does Breastmilk Last After Warming? https://breastfeedingconfidential.com/how-long-does-breastmilk-last-after-warming/

Ibudanbalita.com. ASI Bertahan Berapa Jam di Suhu Ruang? Ini Jawabannya. https://www.ibudanbalita.com/artikel/asi-bertahan-berapa-jam