Title: Traps milk or cream under top rubber gasket, turns to mold and can't be cleaned out
Review: When I got this mug at first I really liked it, the way it is designed it keeps beverages much warmer and for longer time period than any other similar product I've tried. However after having it for over a month and using it almost every day for coffee and tea drinks that sometime include milk or cream, I noticed that there was slime coming out from under a rubber gasket at the top of the cup between the plastic flange and the steel cup body. I tried to clean it out but its not possible to get at it to fully clean it out and I can still see some debris stuck just under the edge that I can't remove. Without a doubt this gets into what I'm drinking once it heats up, not appetizing to say the least so I don't use this mug anymore. My next step is to try and get a refund from Amazon. Unless you only drink without any milk or creamer I would not buy this product. Will report back about what Amazon says about a return.
Is this product review negative?