Introducing Ember Mug 3
Your coffee.
Perfectly warm.
A self-heating mug that keeps every sip at your temperature. Now with on-mug control, a sliding lid, and dishwasher-safe care.
Recognized Ember design & technology
The shelf
Ember Mug 3
Everything you love about Ember, made easier with Mug 3.
Shop Mug 3
01 · On-mug control
Choose your preferred temperature using the button on the mug, or fine-tune it in the optional Ember app.
02 · All-day warmth
The sliding lid is included free. Use it to keep your drink warm for over 3 hours on a charge.
03 · Dishwasher safe
Mug 3 is top-rack dishwasher safe. Let it dry completely before charging.
How Ember works
The heater and sensors are built into the mug, so your coffee stays at the temperature you choose, even away from the coaster.
Introducing Ember Tumbler 2
From the morning commute to the sidelines. Your chosen temperature, in a slimmer tumbler that goes with you.
Compare
Choose Mug 3 for your desk or home. Choose Tumbler 2 for hot drinks on the go. For iced drinks, choose Cold Tumbler.
| Compare | 14oz Mug 3Shop | 10oz Mug 3Shop | 6oz CupShop | Tumbler 2Shop | Cold TumblerShop |
|---|---|---|---|---|---|
| Best for | Everyday coffee at a desk | Smaller pours and tea | Espresso and smaller pours | Commutes and days on the go | Iced coffee and matcha |
| Capacity | 14 oz | 10 oz | 6 oz | 16 fl oz | 16 oz |
| Battery | 3+ hours with lid | 3+ hours with lid | Up to 90 minutes | 3+ hours with lid | Not heated |
| Temperature | On-mug or app control | On-mug or app control | 120°–145°F | 125°–145°F on tumbler | Cold drinks |
Inside Ember
A built-in heater and precision sensors maintain your preferred drinking temperature. Set it directly on the mug or in the optional Ember app.
Your next favorite
The mug you know and love, now easier than ever to use. Set your temperature in the app or right on the mug, and enjoy every sip at the perfect temperature.
Coffee club
Annual Coffee Club: $90.00 $300.00 for the year, with a grey 14 oz Ember Mug in your first shipment.
Gift
Give them perfect-temperature mornings with Mug 3. Choose a size and color they’ll love.
Shop gifts
CSS Design Awards · 2026 nominee