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Will this mug warmer actually heat up my cold coffee, or does it only keep warm coffee warm?
It's a warmer, not a kettle — it keeps already-hot drinks at 113/131/167°F. Pour hot coffee first, then it holds the temperature for hours. Cold drinks warm only slowly and won't reach microwave-level heat.
Do I need a special mug, or will my own cups work with it?
No special cup needed. The 4.2" glass plate fits most mugs; flat-bottomed thin ceramic works best. Curved bottoms, double-wall or thick-based mugs transfer less heat.
Is it safe if I forget to turn it off before leaving my desk?
Yes — it auto shut-offs after 4 hours by default, and you can set a 1–12 hour timer. Even if you walk away and forget, it turns itself off.
How do I know it's on and which temperature is selected?
Each setting has its own LED: blue = 113°F, purple = 131°F, red = 167°F. You can check the status at a glance from across the room, and it adds a cozy glow to your desk.
Does the plate get dangerously hot? Is it safe on a wooden desk?
The waterproof glass panel is heat-resistant — safe for desks and tables. As with any heater, avoid covering it with papers or cloth while in use.
Will this mug warmer actually heat up my cold coffee, or does it only keep warm coffee warm?
It's a warmer, not a kettle — it keeps already-hot drinks at 113/131/167°F. Pour hot coffee first, then it holds the temperature for hours. Cold drinks warm only slowly and won't reach microwave-level heat.
Do I need a special mug, or will my own cups work with it?
No special cup needed. The 4.2" glass plate fits most mugs; flat-bottomed thin ceramic works best. Curved bottoms, double-wall or thick-based mugs transfer less heat.
Is it safe if I forget to turn it off before leaving my desk?
Yes — it auto shut-offs after 4 hours by default, and you can set a 1–12 hour timer. Even if you walk away and forget, it turns itself off.
How do I know it's on and which temperature is selected?
Each setting has its own LED: blue = 113°F, purple = 131°F, red = 167°F. You can check the status at a glance from across the room, and it adds a cozy glow to your desk.
Does the plate get dangerously hot? Is it safe on a wooden desk?
The waterproof glass panel is heat-resistant — safe for desks and tables. As with any heater, avoid covering it with papers or cloth while in use.