Keep Coffee Hot Longer 
When you pour hot coffee into a cold mug, the mug absorbs heat, making the coffee cool down faster. To keep coffee hot longer, preheat the mug by filling it with hot tap water and letting it sit while the coffee brews. When the coffee is ready, pour out the hot water. For more tips click here. High-res

Keep Coffee Hot Longer 

When you pour hot coffee into a cold mug, the mug absorbs heat, making the coffee cool down faster. To keep coffee hot longer, preheat the mug by filling it with hot tap water and letting it sit while the coffee brews. When the coffee is ready, pour out the hot water. For more tips click here.