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Review title: good but a little difficult to clean
Product review: These are good glasses. I use them for expresso which is by far the best expresso cup I have ever used. They stay warm for a very long time which is important if you are a slow sipper like me.The one draw back is that sometimes water gets in between the two layers through the vent hold on the bottom between the two layers. I guess they need the vent hole during the manufacturing process to they don't explode. But eventually after you wash them enough times in the dishwasher they get water inside and then that dries out and leaves water spots. Not the end of the world. You can soak them in clean pure water to get that out eventually. Overall a great set of glasses for expresso or anything else you want to drink from them.
