Quick verdict
The Ember Mug 2 holds your coffee or tea at your exact chosen temperature — 120 to 145°F — for 80 minutes on battery or all day on its charging coaster. App-controlled with presets and a smart LED, it ends the tragedy of the forgotten lukewarm cup. It is a luxury, but it is a luxury that works exactly as promised.
Key features of the Ember Mug 2
Set your ideal drinking temperature anywhere from 120–145°F in the app, and the mug holds it there — no more microwaving half cups or chugging before it cools. The battery sustains 80 minutes off the coaster; on the coaster, it holds temperature all day.
Thoughtful details elevate it: auto sleep/wake detects when liquid is poured or the mug is empty, the smart LED indicates heating status and low battery at a glance, and presets let different drinks (or different people) have their own temperatures with notifications when the drink hits the target.
The 14oz copper-finish model is the full-size option, IPX7 submersible for easy rinsing, and hand-wash safe. It looks like a premium ceramic mug, not a gadget.
Who the Ember Mug 2 is for
Slow sippers — remote workers, readers, meeting-hoppers — whose coffee always goes cold mid-task. Tea drinkers who care about precise temperatures for different teas. It is a genuinely great gift for the coffee-obsessed who have everything.
It also suits anyone with a desk ritual: the coaster becomes part of the workspace, and the mug is always ready at the perfect temp.
What to watch out for
This is a premium price for a mug — the value proposition is entirely about how much cold coffee bothers you. It is hand-wash only (no dishwasher, no microwave), holds 14oz which is generous but not huge, and the 80-minute battery means off-coaster use needs planning.
The app is required for temperature changes; without it you are stuck at the default. And like all electronics near liquids, treat it well — IPX7 handles rinsing, not scuba diving.
Ember Mug 2 pros and cons
- Pro: Holds exact temperature (120–145°F) for 80 min / all day on coaster.
- Pro: Auto sleep/wake, smart LED, drink presets with notifications.
- Pro: Premium ceramic look; IPX7 rinsable.
- Pro: Genuinely solves the cold-coffee problem.
- Con: Expensive for a mug.
- Con: Hand-wash only; no microwave or dishwasher.
- Con: App required to change temperature.
Ember Mug 2 FAQs
How long does it keep coffee hot?
80 minutes on battery power away from the coaster, or indefinitely while sitting on the powered charging coaster. For desk workers, the coaster makes battery life a non-issue.
Can I put it in the dishwasher or microwave?
No — hand wash only, and never microwave it. It is IPX7 submersible so rinsing and washing by hand are easy and safe.
What temperatures can I choose?
Anywhere from 120°F to 145°F via the app, with presets for different drinks. Most coffee drinkers land around 130–135°F; tea preferences vary by type.
Does it work without the app?
It works at the default temperature (around 135°F), but changing the temperature, setting presets, and getting notifications all require the app.
Is it worth the price?
If you routinely abandon half-finished cold cups, yes — it pays for itself in enjoyment quickly. If you drink fast or do not mind reheating, it is a luxury you can skip.
Price and availability
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