Title: Keeps drinks hot for about 1 1/2 hours
Review: The autoseal works great because no liquid comes out even if you shake the the cup. But it only keeps coffee hot for about 1 hour if you are drinking the coffee. If you fill the cup up and don't drink it until you get to work or school it will keep it warm for up to two or three hours. From my experience the more you break the seal to take a drink the quicker the coffee cools.
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