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Title: Sour Milk; Devastated Mom
Review: These bags seemed perfect, as I was unable to breastfeed my son and was pumping full-time for him. Sometimes I would have extra milk at the end of the day, so I froze it using these bags and also some Avent freezer bags that I had. Once I stopped breastfeeding, I went to use the frozen milk that was remaining in the freezer (I had been using it up slowly as I decreased my milk supply, so none of the milk was in there longer than 2 or 3 months), and to my dismay 90% of the milk in the medela bags was complelety sour. The Avent bags, though they didn't fit on my Lactina pump, worked for 100% of the milk I stored. Don't waste your money and effort on these bags. You may be sorry.
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