so this mug keeps my coffee now for quite some time. So far the best thing I had to Thermo-drinking cups. If the coffee at 8:00 clock in the morning finds its way into the insulated cup he is about 12.00 clock noon still pretty hot. What he approaches the cleaning problem here many times described is dishwasher safe !!! One should leave the lid knob in the depressed position when you put the items in the dishwasher. Then the lid briefly rinse it under the tap with warm water and you're done. I give him no longer here!
