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A Review of Ember®: The Temperature Control™ Mug

My worst kept secret is my love for coffee. I have a fresh cup of coffee on my desk throughout the whole day. I dunno why, but having that warm cup of magic just completes me. I don’t like to slug it down though. I’m a sipper, which creates a problem because as much as I love coffee, I really don’t like lukewarm coffee. Intentionally iced or hot, please. No in-betweens.

Knowing hot coffee is my kryptonite, you can imagine how giddy I was when I found ember, the

I mean, I’ve tried it all to keep my coffee warm. I’ve tried KeepCup 12oz Reusable Coffee Cup. Toughened Glass Cup & Natural Cork Band. 12-Ounce/Medium, Press""“>keep cups, and drinking from travel mugs, everything to maintain the warmth for longer. To be truthful, it’s really not a perfect system. Every effort still leads to cold coffee. And besides, who wants to drink out of metal all the dang day? I want fun, chic and if you add a little geekiness, I’m here for it.

Available in black or white (or a pricy copper version), ember definitely upped my coffee “cool” factor, to like, secret handshake cool. I have to admit, I feel a little like a coffee elitist with it, but YOLO, right?

I chose the black mug for two reasons: I was afraid the white might stain over time and I thought the indicator light would show up better on black – annnnd that’s my nerd flag flying for you. 😉

I love the idea of this technology – but I think the mug could still be perfected. Here is my tried and true ember mug review after using mine for several weeks.


Pros –

ember definitely keeps liquids warmer longer, primarily on the bottom of the mug, which makes perfect sense based on the construction. (I think it may be ideal for hot chocolate fire pit duty.)

ember by fire

The design is aesthetically pleasing. I feel like it’s a work of contemporary art that I have on my desk, and the ceramic just feels good in my hands.

ember on desk

Personally, I’m blissfully unconcerned with my caffeine intake, but should YOU be interested, the ember will connect with Apple Health so you can monitor your consumption.

The nerd factor is high, and I’m a card-carrying nerd. Having a coffee mug that I control with my phone somehow validates my coffee prowess. I feel like there should be a secret society for us coffee codependents.

Cons –

The warmth gauge doesn’t quite go high enough. This is likely not an issue for most people, but much like the sleep number beds have taught us how to customize our comfort, I’ve learned that my ideal coffee temperature is right at 150 degrees. ember tops out at 145. Sigh.

ember resting temp

Also, it doesn’t really maintain the temperature that you set it at. It’s close, but not perfect. Perhaps my sensor is off?

I feel like I have to “connect” my ember each time I use it. I’d prefer to have the app confirm that it’s readying my mug automagically because sometimes I forget, and think that the mug isn’t working and the chilling of my coffee makes me check in. *This could be completely user error. And further, may drain my battery if I have it searching at all times. so let’s stay neutral on this point.*

Biggest complaint? The mug isn’t big enough.

ember overflow

For those of us who like to add froth their coffee, (I do love a frothy coffee) it cannot safely accommodate more than the medium cup setting on a Kuerig sans froth. If you froth, forgettaboutit. You’ll have a mess. Case in point.

ember froth cap

You have to charge it every other day, at least for a frequent user like me, and the saucer sits on your counter. Not a big deal though, I just wash the cup (has to be hand-washed, okay, there’s another con) at night and then it’s charged and ready for duty the next morning.

It’s expensive. I chose the cup and saucer version of ember because it was (only) retail $80. The

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