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Title: Way too leaky!!
Review: These bottles leak 80% of the time! That is way too often! It's especially frustrating when I'm trying to mix up formula in the middle of the night and milk flies all over the kitchen as I shake the bottle. No matter if I put the lid on tight or loose, it leaks. I bought some of the Playtex Vent-Aire bottles and have never had one single problem with leakage. I would recommend them a million times over the Avent bottles.
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