Medela Pump & Save Storage Bags 50-pk.

lost milk and milk volume measurement inaccurate My milk leaks from these quite frequently. the zip lock is difficult to seal correctly for some reason. even if you cinch it tightly between your fingers and slide across to seal a few times, it feels sealed even when not. so they are kinda tricky. it would be nice if there was a color change when they are properly sealed, like some food storage bags. The volume of pumped milk in the bag is actually less than what it looks like. I've noted this after pouring milk into several types of bottles including the medela bottles that came with the pump Rating: 2 (L, 2010-07-27) Medela Pump & Save Storage Bags 50-pk. customer review

Hard to seal, too small, and inaccurate measuring These bags are nice in concept but fail in reality. Yes, you can pump into them, but the top will basically be open so unless you're really careful, they are easy to spill. I now just pump into bottles and pour the bottles into the bags. The zip-top seal is very hard to close tight, you'll think it's sealed but it's not, or else it pops open after you close it. I've had multiple spills and leaks because of this. If you fill the bag to the 5oz line at the top, when you freeze it the contents will expand and open the top. Also, the measurement lines on the bag are not accurate at all unless you fill the bag - in which case you don't need them. The first several times I pumped, I thought I was getting a lot more than I was...imagine my frustration when I poured the bags into a bottle and discovered I only had about 2/3 of what I thought I did. I'm going to try the Lansinoh ones next...these are not worth the price. Rating: 1 (R. Maxim, 2010-07-22) Medela Pump & Save Storage Bags 50-pk. customer review

Medela Milk Storage Bag This bag is ok to use. But it is kind of pricy and you do have to be very careful when zipping the bag. Otherwise, the bag will leak. Rating: 3 (H. Wu, 2010-07-16) Medela Pump & Save Storage Bags 50-pk. customer review

Wastes precious breastmilk Fits the pump conveniently, but I have lost so much precious breast milk due to leaky bags. It seems when they are frozen and then defrosted, the bottom of the bag comes unglued. Also, the ziplock does not seal very well. I will never buy this product again. Rating: 1 (Liv, 2010-06-21) Medela Pump & Save Storage Bags 50-pk. customer review

Worth the money Although wasteful to be using so much plastic, these bags are very convenient to pump into while at work. Unfilled they take up almost no space, and I can easily fit 6 very full bags plus two ice packs in my Medela cooler. Other reviewers seem to have problems with the bags not sealing properly. This happened to me only once. Since then I have double checked the zipper seal after locking it, and then I turn the bag upside down to check for spillage. I haven't had a problem since. Rating: 5 (Dotty, 2010-06-13) Medela Pump & Save Storage Bags 50-pk. customer review