Yes, you can customize the LED’s color (and brightness) so you don’t mix up your warm milk with your partner’s mug of nearly-scalding tea. Basically, there are three things you can do: change the temperature units, turn on notifications and customize the LED. If you press the gear on the top right, there are a handful of settings as well as a section displaying the Ember Mug 2’s battery level. Where it said “Empty” before, the app will now display the actual temperature of your drink. On the bottom is a slider - use this to select your preferred temperature (up to 145 degrees Fahrenheit). Once you’re in the app, it will say “Empty” to indicate there’s nothing in your mug. Then, hold the power button on the bottom of the mug until the LED flashes blue. To do so, tap “Pair new device” after opening the app for the first time. Before you use it, you’ll need to pair your mug with the app. The Ember app is rather simple, but an app that controls a mug doesn’t need too many bells and whistles. And if the light is red, it’s time to charge up. Once it’s solid, that means it’s hit the sweet spot. For example, when it’s slowly pulsing, that means it’s bringing your beverage up to temperature.

Right on the front, beneath the Ember 2 logo, is an LED that provides info on both the status of your drink and the battery remaining in the mug. Don’t worry, metric mates, you can change the readings to celsius in the settings. The app provides both your selected temperature and the current temperature of your drink.

However, with the Ember app, you can define any temperature between 120 and 145 degrees Fahrenheit. But then again, a nifty invention called ice has us covered on that front.īy default, the mug aims to keep liquids at 135 degrees Fahrenheit. Unfortunately, it can’t keep things cool, which would have been double the fun.

And while it can heat up liquids from cooler temperatures, its main purpose is to maintain the heat of an already piping beverage. Likewise, it’ll go to sleep after a time if it’s empty. It will automatically detect when liquid’s inside and begin heating. It keeps your drink toasty by creating a convection current in whatever liquid you fill it with. It comes in three styles: 10 ounces in white, 10 ounces in black and 14 ounces in black. The Ember Mug 2 is a rechargeable stainless steel mug surrounded by a ceramic coating (tip: do not microwave it).

Ember mug