Ember®
Ember Tumbler 16 oz — Smart Temperature Control Travel Mug
Description
Stop reheating your coffee. The Ember Tumbler is a 16 oz smart heated mug that lets you set an exact drinking temperature — and keeps it there for up to 3 hours on battery, or all day on the included charging coaster. App-controlled, beautifully built, and designed for real life.
Your Coffee, Your Temperature. Every Single Sip.
Most insulated tumblers keep your coffee "hot" but hot isn't always right. Too hot and you're waiting. Too cool and you're disappointed. The Ember Tumbler solves this completely. Set your ideal drinking temperature anywhere from 120°F to 145°F via the Ember app, and your coffee stays exactly there from your first sip to your last.
Whether you're pulling a morning espresso at home, heading into a long commute, or just settling into a slow work-from-home morning, the Ember Tumbler adapts to how you actually drink coffee — not the other way around.
Why the Ember Tumbler Belongs in Your Coffee Routine
- Precise Temperature Control (120°F–145°F) — set your exact preferred temp down to the degree. Never too hot, never lukewarm.
- Up to 3 Hours on Battery, All Day on the Charging Coaster — use it untethered on the go or keep it on the coaster at your desk for unlimited warmth.
- Ember App Integration — set temperature presets, customize your LED indicator color, receive a notification when your drink hits your perfect temp, and use the built-in steep timer for tea.
- Two Lids Included — choose the leak-proof Handle Lid for carrying or the spill-proof Sliding Lid for sipping. Both are dishwasher safe.
- IPX7 Waterproof — rated for full submersion up to 1 meter. Easy to hand wash or rinse without worry.
- Auto Sleep Technology — intelligently senses when your cup is empty or inactive and powers down automatically to preserve battery.
- Advanced Bluetooth Chip — Ember's most reliable Bluetooth connection yet, with a simplified pairing process.
- Premium Textured Stainless Steel — durable, scratch-resistant, and surprisingly comfortable to hold without a handle. Fits most car cup holders (3.5"+ diameter).
What's in the Box: Ember Tumbler (16 oz) · Handle Lid · Sliding Lid · Charging Coaster · Power Adapter
Perfect For Every Coffee Moment
- Espresso-based drinks — lattes, cappuccinos, and flat whites stay silky smooth at your preferred sipping temp.
- Pour-over and drip coffee — no more racing to finish before it goes cold.
- Tea — use the built-in steep timer in the app to nail your brew every time.
- WFH or desk mornings — pair it with the charging coaster and your coffee stays warm all day while you work.
Pair It With What You're Brewing
The Ember Tumbler is a perfect companion to the espresso machines, grinders, and coffee accessories we carry. Whether you're brewing on a Breville, pulling shots on a prosumer machine, or doing a slow pour-over, this is the vessel that honors the care you put into your cup.
Specifications
Capacity: 16 oz (475 ml)
Temperature Range: 120°F – 145°F (48.9°C – 62.5°C)
Battery Life: Up to 3 hours (or all day on charging coaster)
Connectivity: Bluetooth (iOS & Android)
Water Resistance: IPX7 — submersible up to 1 meter
Material: Stainless steel, scratch-resistant coating
Lids: Handle Lid (leak-proof) + Sliding Lid (spill-proof)
Cup Holder Compatible: Yes — fits most holders 3.5"+ diameter
Dishwasher Safe: Lids only; mug hand wash recommended
About Ember
Ember was born from a simple frustration great coffee going cold too soon. Founded with a belief that every sip should be as perfect as the first, Ember set out to reimagine the everyday mug using precision technology and thoughtful design.
Today, Ember is the world's first temperature control mug brand, trusted by coffee and tea lovers who refuse to settle for lukewarm. Their patented heating system holds your drink at your exact preferred temperature — not just "hot," but your kind of hot — from the moment you pour to the very last drop.
Designed for the desk, the kitchen counter, and every slow morning in between.
Frequently Asked Questions
Standard insulated mugs slow cooling but can't control temperature. The Ember Tumbler actively heats your drink and maintains your exact preferred temperature — meaning your last sip is just as perfect as your first.
No. Out of the box it's preset to 135°F and works without the app. The Ember app (iOS & Android) unlocks custom temperature settings between 120°F–145°F, LED color personalization, notifications, and a steep timer.
Up to 3 hours unplugged at 135°F with hot liquid poured in. Lower temperature settings extend battery life; higher settings may reduce it slightly. On the included charging coaster, it runs indefinitely.
Yes — the Ember Tumbler is IPX7 rated, meaning it can be safely submerged in up to 1 meter of water. Both lids are dishwasher safe. Do not microwave.
Yes — it fits most car cup holders with a minimum 3.5" diameter.
Via the Ember app, you can set any temperature between 120°F and 145°F. Without the app, it defaults to 135°F.