Freshly expressed or pumped milk can be stored: At room temperature (77°F or colder) for up to 4 hours. In the refrigerator for up to 4 days. In the freezer for about 6 months is best; up to 12 months is acceptable.
When reusing breast milk, remember that leftover milk that was not finished from your baby’s bottle can be used for up to 2 hours after he or she has finished feeding. Thawed breast milk that was previously frozen can be stored at room temperature for 1 – 2 hours, or in the fridge for up to 24 hours.
Breastmilk is OK for up to 4 hours after pumping at room temperature (up to 77°F). Refrigerate it. Breastmilk is OK in the refrigerator for up to 4 days. Place milk in the freezer.
Milk from different pumping sessions/ days may be combined in one container – use the date of the first milk expressed. Avoid adding warm milk to a container of previously refrigerated or frozen milk – cool the new milk before combining. Breastmilk is not spoiled unless it smells really bad or tastes sour.
Freshly expressed breast milk can be left at room temperature for up to 4 hours, according to the ABM and CDC. So if you plan to pump twice within that time period, you can store the bottle on the countertop between sessions and pump into it again.
Human milk that has truly soured has a very distinct sour taste and odor – much like soured cow’s milk. If your milk doesn’t smell distinctly sour or rancid, then it should be safe to feed to your baby.
Yes, it’s safe to feed your baby cold milk. In fact, frozen breast milk can be used as a form of pain relief for teething babies!
But rest assured, even if it’s gone bad, it won’t be a danger to your baby. It will merely taste bad and lose its potency of nutrients. According to Baby Center: Freshly pumped milk can safely be left at room temperature (60℉-85℉) for 6-8 hours.
4 Useful Ideas for Expired Breastmilk Baths. Breast milk is a great skin softener and may help with minor blemishes. Freeze it. Freeze breastmilk into cubes to treat minor cuts, scrapes and bruises. Soap. Another way to enjoy milk during bathtime is by making homemade soaps. Jewelry. This one is my favorite. More on Breastfeeding.
If you don’t have access to a refrigerator or freezer, store the milk temporarily in an insulated cooler with ice packs. Fill individual containers with the milk your baby will need for one feeding. You might start with 2 to 4 ounces (60 to 120 milliliters), and then adjust as needed.
Use screw-on lids, not nipples, on the bottles. Never add warm milk to cold or frozen milk. If you need to combine milk to have enough for a feeding, cool the warm milk first. Mother’s milk stored in the refrigerator should be used within 7 days — don’t freeze it after this time.
Aim to spend 15 to 20 minutes hooked up to the pump to net a good amount of breast milk (some women will need 30 minutes or more with the pump, especially in the early days). Pump until the milk starts slowing down and your breasts feel well-drained.
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.
The theory is that proteins in breastmilk are delicate enough that shaking would denature them. They would have to prove that shaking denatures a significant quantity of biologically relevant proteins, and that losing those proteins makes the milk inferior to non- shaken milk.
If you use a wash basin or bottle brush when cleaning your pump parts, rinse them well and allow them to air-dry after each use. Consider washing them every few days, either in a dishwasher with hot water and a heated drying cycle, if they are dishwasher-safe, or by hand with soap and warm water.