To find the best coffee mug warmers, we tested 16 models in real-world conditions over a month-long trial period. In addition to Laskowski, we consulted Adriana Uriostegui, a brewing trainer at ...

They’re also more convenient — I make my coffee and tea at home the vast majority of the time, but now, I pour it into one of the few reusable mugs I tested for this story whenever I want to ...