Onyx
Consistent, precise scale for recording and refining every stage of the brew.
- Description
- Specifications
Onyx records every brew on the device, handles the calculations behind every pour, and adapts to the way you brew. Designed to grow alongside your coffee journey, it helps you understand what you brew, and discover new ways to bring out the best in every cup.
And the journey doesn't end when the brew does. Together with the Acaia app, Onyx keeps your brewing close—bringing your data, history, content, and personalization together as you learn, explore, and improve over time.
Built Around Your Workflow
Every brewer develops their own routines over time—from the way they pour to the information they value most during a brew.
Onyx adapts to the way you brew—not the other way around. Customize every mode independently, switch seamlessly between brewing methods, and let Onyx assist when your attention needs to be somewhere else.
Customize Every Mode
Configure timer, flow rate, ratio, Auto Tare, Auto Start and more independently.
Espresso & Pour Over
Switch between brewing methods with method-specific automatic detection.
Freedom to step away.
Set your pour count and rest time between pours. Onyx calculates each target and guides the rest between pours.
Automatic When You Want It.
Manual When You Need It.
Onyx adapts its behavior to the way you brew. Tare Delay, Auto Start, and Auto Reset to handle the repetitive parts of weighing—while keeping you in control when you need to intervene.
Weigh Your Way.
Auto Tare automatically zeros the scale when your portafilter or cup is placed, keeping dosing simple and uninterrupted.
Let Onyx Start the Brew.
Auto Start detects the beginning of your brew and starts the timer automatically, keeping your attention on the coffee.
Not just weighed. Understood.
10 Years of Coffee Weighing. One Engine.
Flow rate. Stabilization. Creep compensation. Extended Resolution. Advanced brewing calculations.
A decade of Acaia weighing algorithms comes together inside Onyx. Designed specifically for coffee brewing, the Acaia ReacX™ weighing technology continuously processes the measurements behind every brew, adapting across brewing methods with precision when it matters most.
One Scale.
An Expandable Brewing System.
One scale doesn't have to stop at one workflow.
Pair Onyx with Umbra to unlock advanced brewing capabilities — from combined weighing and water retention analysis to new possibilities for recipe development and training.
As your workflow evolves, Onyx grows with you.
Beyond your Brew,
Keep Exploring,
The Acaia app connects to Onyx over Bluetooth to unlock everything beyond the display — visualize your data, personalize your setup, revisit your sessions, and discover new ways to learn from every cup.
Visualize every brew
See weight, flow rate, and timing laid out after every pour. Compare sessions side by side and watch your technique take shape over time.
Personalize your Onyx
Set your device image, setup your modes, adjust volume — make the scale on your counter behave exactly like the one in your head.
Coffee Spotlight
Explore routines from world-class competitors and specialty brewing — browse the details behind every pour.
Wherever Coffee Takes You.
Daily Ritual.
Coffee Shop Service.
Competition Brewing.
Professional Training.
Because the pursuit of better coffee looks different for everyone.
Crafted in the Pursuit of Mastery
Coffee is never finished.
Every cup is an opportunity to explore, refine, and brew better than before.
Whether you're preparing your first competition routine or simply making tomorrow's cup better than today's, Onyx stays with you through every stage of your brewing journey.
Inside the package
Below are the items you will receive when you order the Onyx.
Onyx
USB-C Charging Cable
Heat Resistant Pad
Box Elastic Band
Care and Cleaning
Use a soft cloth with warm water only to clean the product.
Do not use detergent or other chemicals for cleaning and soaking as it can damage the anodized coating on the product.