Based on related evidence thus far, it seems reasonable to discard the remaining milk within 1—2 hours after the baby is finished feeding. In contrast, formula must be refrigerated and discarded after the first feeding attempt because it contains no antibodies or infection protection factors.
Although no published studies have examined the safety of keeping leftover milk, a college student researched this scenario for her unpublished senior thesis Brusseau, … The only milk with increased total bacterial counts was one batch of the warmed and fed milk from a mother who had not followed instructions and had donated previously frozen milk instead of fresh milk.
All other batches showed no change in total bacterial counts within 48 hours after feeding. Brusseau R. May Many women who choose breastfeeding after returning to work, express milk during the day and store this milk for a future feeding.
When infants do not finish a bottle of expressed breastmilk, doctors recommend unfinished portions be thrown away. Select personalised content. Create a personalised content profile. Measure ad performance. Select basic ads. Create a personalised ads profile. Select personalised ads. Apply market research to generate audience insights. Measure content performance. Develop and improve products. List of Partners vendors.
Parents have many options when it comes to expressed breast milk storage. It can be stored in the refrigerator, freezer, insulated bag, and even at room temperature. In fact, pumped breast milk can sit out at room temperature for longer than infant formula and other foods before becoming unsafe for your baby, but parents and caregivers should still familiarize themselves with safe storage guidance.
For healthy full-term infants, here are the guidelines for keeping breast milk out at room temperature up to 77 degrees F or 25 degrees C. Bacteria are all around. They are on your hands, on the skin around your breasts, and on the parts of your breast pump. When you pump your breast milk, some of that bacteria gets into the milk. But don't worry: When you store your breast milk safely, this small amount of bacteria will not harm a healthy, full-term child. Breast milk contains antibacterial and immune properties that can prevent bacteria from growing inside of it for many hours.
However, the longer it is left out, the more time the bacteria has to multiply. Temperature also plays a significant role in the growth of bacteria. Freeze breast milk if you will not be using it within 24 hours. Breast milk expands as it freezes, so do not fill the milk all the way to the top of the storage container. Again store the milk in the back of the freezer, not the door. To thaw breast milk from the freezer: Put the bottle or bag in the refrigerator overnight, hold it under warm running water, or set it in a container of warm water.
Remember that heating breast milk in microwaves is not safe. Once breast milk is thawed: It can be stored in a refrigerator and must be used within 24 hours. We know breast milk storage can be confusing, so here is a more conservative approach that you can also go by and easily remember : 4 hours at room temperature and 4 days in the refrigerator!
Editor's Note: Although these breast milk storage guidelines are appropriate for babies born premature and those who are hospitalized, hospitals may have their own rules. The American Academy of Pediatrics recommends breastfeeding as the sole source of nutrition for your baby for about 6 months.
When you add solid foods to your baby's diet, continue breastfeeding until at least 12 months. You can continue to breastfeed after 12 months if you and your baby desire. She is the co-author of The Pediatrician's Guide to Feeding Babies and Toddlers , a comprehensive manual written by a team of medical, nutrition, and culinary experts.
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