Conversation

Too tired to tell a friend that a "smart mug" that will keep your coffee hot for six hours is:
1. Almost certainly just a hotplate with a timer
2. Coffee doesn't keep tasting good for six hours. You've got two before it starts turning sour. If you've ever been in a coffee shop and seen them dump a gallon of hot coffee that's why.
3. If it takes you six hours to drink a single cup of coffee - just make half a cup of coffee twice six hours apart?