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Review title: Very unpredictable!
Product review: Like other reviewers, I have had nothing but problems with this thing! The instructions for how much water to add are not right at all. You have to figure out on your own how much water to use, and then, you can do the exact same thing twice and one time will still be ice cold and the other time burning hot. There is a little ring piece, which is not attached, and if you lose it, the thing does not work AT ALL since all the steam just escapes! Ours stopped heating consistently after two months of use. It gets a brown build-up in the bottom, and you can not fit your hand in there to clean it out. The instructions say to wipe with vinegar periodically, which I have found you actually have to do every day or else you will never get the build up out. We are switching to Munchkin brand bottle warmer now that this one has quit working.
