For the price of washing two mugs instead of one, you can also pour the coffee through air from one to another a couple of times. That brings the temperature do

For the price of washing two mugs instead of one, you can also pour the coffee through air from one to another a couple of times. That brings the temperature down much quicker comparing to just leaving it sit a while. Helps to have containers that have an edge that is easy to pour from. Less spilling.