How much of my milk should I store in the freezer?
Although some women may choose to pump large volumes to be frozen, it's a good idea to actually store the breast milk in 2 to 4 ounce (59.1 to 118.2 milliliters) portions so as not to waste any. Label the bottles, cups, or bags with the date and your baby's name, then freeze them.
You could also pour the milk into ice cube trays that have been thoroughly cleaned in hot water, let them freeze until hard, store them in freezer bags, then count up the amount of cubes needed to make a full bottle.
My frozen breast milk changed color. Is this OK?
Breast milk that's been frozen or refrigerated may look a little different from fresh breast milk, but that doesn't mean it's gone bad. It's normal for early breast milk to look kind of orange and the mature milk to look slightly blue, yellow, or brown when refrigerated or frozen. And it may separate into a creamy looking layer and a lighter, more milk-like layer.
How do I clean bottles and pump parts?
Prior to the first use, you'll need to wash and then sterilize the nipples, bottles, and washable breast pump supplies (for example, the breast shields and any other part that touches your breasts or your milk) by boiling them for 5 to 10 minutes. Check the manufacturer's recommendations for the length of time to boil the parts.
You also can sterilize the parts with a countertop or microwaveable sterilizer, but boiling works just as well and costs nothing. Thereafter, you'll need to wash the pump supplies in hot, soapy water (or run them through the dishwasher) after every use.
Bottles and nipples need to be washed and sterilized for each use for the first 3 months of the baby’s life because they can transmit bacteria if they aren't cleaned properly.
Is it safe to microwave my baby's bottles?
The microwave can create dangerous "hot spots" in bottles of formula or breast milk, so you should never microwave them. Instead, you can run the bottle or freezer bag under warm water for a little bit, swirl the bag or bottle around in a bowl of warm water, or thaw the milk in the refrigerator.
You also can put your baby's bottles in a pan of warm water (away from the heat of the stove) and then test the temperature by squirting a drop or two on the inside of your wrist before feeding your baby. And bottle warmers are available for use at home or in the car.
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