coffee warm

How Do USB Coffee Warmers Work?

by

mug warmers use heating coils in the same way electric kettles do. Once plugged in and switched on (most have an on/off switch on the side), electricity flows to a small heating coil built inside the device. A mug warmer works by using the simple properties of heat transfer and thermal energy Will a wireless … Read more

Is There A Coffee Cup That Keeps Coffee Hot?

by

Is there a cup that keeps your coffee hot? A double-walled borosilicate glass mug is the most common type of home mug you’ll find marketed specifically for keeping your coffee warm I tried several brands with double-walled vacuum insulation, but only the Bodum worked as well as the two mugs above in keeping coffee warmer … Read more