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Title: Great but weird taste sometimes.
Review: This thermos is great in that it keeps the coffee hot for pretty much as long as I could ever want it to. The downside is that is for some reason gives the coffee a watered down taste when it is in there for more than an hour or so. I can't figure out why but if I don't snug the lid down all the way tight it eliminates this problem. Beats me, but its still great in that everything stays warm enough.
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