Negative Positive
Title: Save your money
Review: The manufacturer claims these bottles vent and therefore reduce gas and spit-up, but I don't think we found it's effective. Besides, they do leak a lot, and are very touchy about how you screw the ring on. Sure, you can wet the nipple like the maker recommends to create a seal, but if you sterilize your bottles and nipples wetting them with tap water defeats the purpose of sterilization. So you pretty much have to assemble the bottle right before feeding. We also were very frustrated by the fact that the nipples wear out fast (get larger holes), yet they are stiff making it frustrating for the babies to suckle. As compared to other feeding systems, this is not worth it - get Dr Brown's instead and save your money, because if your baby has problems with gas you'll probably end up trying Dr Brown's anyhow. I have twin boys and we feed them breast milk that I pump, so leaking is such a waste... I wouldn't recommend this feeding system.
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