Acaia Umbra Duo – display-less precision scale with a large work surface
Two containers sit side-by-side on a clean, display-less surface. No flickering screen – the number appears exactly where you need it: on your paired Acaia scale or on your phone. You dose, brew, weigh, and your counter stays tidy.
A scale that takes a backseat so the coffee can take center stage.
What makes the Umbra Duo special
The Umbra Duo is a display-less Acaia scale with a larger work surface than the classic Umbra. This means it can accommodate not just a single cup, but also larger preparations or multiple containers simultaneously. It measures with an accuracy of 0.1 g and, in the finer mode, 0.01 g – precise enough to reliably repeat recipes.
Instead of its own screen, it connects to other Acaia scales via Magic Relay and shares measurement data in real time; you can read the data on a paired Acaia scale or through the Acaia app. This keeps the surface clean, reduces power consumption, and extends battery life. It's made from anodized aluminum and water-resistant materials, so splashes and brew mist are not an issue in daily use. Advanced measurement modes like weight, timer, and flow trigger help you keep track of the brewing process. You decide if this approach appeals to you; this is just our perspective, one of many.
At a glance
| Accuracy |
0.1 g / 0.01 g |
| Display |
display-less – read via paired Acaia scale or Acaia app |
| Connectivity |
Magic Relay, real-time data transfer to other Acaia scales |
| Measurement modes |
Weight, Timer, Flow Trigger |
| Work surface |
larger than the classic Umbra, for multiple containers |
| Material |
anodized aluminum, water-resistant |
Who the Umbra Duo is for
The Umbra Duo is for anyone who likes to approach their brewing process systematically and wants to make recipes traceable – whether for espresso, pour-over, or batch brew. If you weigh multiple containers simultaneously or want to pair multiple Acaia scales, you'll find the right platform here. Every coffee journey is welcome with us.
Pairs well with
Further Acaia scales like the Pearl or Lunar can be found in our Acaia Collection. For espresso, take a look at our espresso machines, for filter coffee, drippers and accessories in our Hario Collection. Unsure what fits your setup? Our consultation tool can help.
Frequently asked questions about the Acaia Umbra Duo
How accurate is the Umbra Duo?
It measures with an accuracy of 0.1 g and, in the finer mode, 0.01 g. This is sufficient to reliably dose and repeat recipes.
Does the Umbra Duo have a display?
No, it is display-less. You read the measurements on a paired Acaia scale or the Acaia app. This keeps the surface clean and conserves battery life.
Which Acaia scales can the Umbra Duo be paired with?
Via Magic Relay, it connects to other Acaia scales like the Pearl or Lunar and shares real-time measurement data.
What is the larger work surface suitable for?
It offers space for individual cups as well as larger preparations or multiple containers simultaneously – practical for espresso, pour-over, and batch brew.
Roastery Tip
An accurate scale helps you get closer to your desired result – but we see weighing as a learning journey, not a guarantee. No shot is exactly like yesterday's, because the bean, humidity, and human element change daily; that's precisely the beauty of it. For espresso, we often reach for Cozy Chocolate and Nutty Delight – full-bodied, sweet, dense. If you prefer it full and rounded without any acidity, stick with Very Nutty; for a fruity experience, Wild Peach goes into the grinder. This is our recommendation, one of many, and every bean you enjoy is the right one.
