The brand guarantees up to 4.8 hours of warming depending on which heat ... of the self-warming NextMug. The best one? Avoid stirring with a metal spoon. “I’ve found the ceramic mugs will ...

Keep Coffee Warmer: This is a 2-in-1 smart heating & stirring coffee cup ... 24 Hours AUTO Shut Off: The Thermostatic Stirring Coffee Mug will auto shut off after continually working 24 hours.

The Nextmug Temperature-Controlled, Self-Heating Coffee Mug is a heated coffee mug for anyone who doesn't want to bother with a smartphone app. What you give up in customization, you gain in ...