Orbiter served as a machine sponsor. They produce the beautiful Orbiter OB-1 PRO 1.2kg electric Smart Roaster, which is now fully supported by Artisan.

The following individuals and operations (in no particular order) did support the development of this version with their donations:

_{Theodore Griffith, Edward Manz, Gary Tree, Daniel Oliver, OKRO Roastery, Bart and Jill Milner, juliendefago-lab, Jose Paez Rodriguez, Nattapong Thaipanit, Mark Bush, Ars Antiqua Audio, Fumihito Shiono (THE COFFEESHOP), Eberhard König, Erick Jose Lopez Arteta, Alex Kolankiewicz, David Stomski, Nelson Lourenco, Jeffrey Gregory, Michael Hays, Derek Arnold, Mohamed Noor, Richard Fox, Jose Alvarez (Literal Coffee), Joseph (D’Leon), Vanik922, Scott MacLeod, Lisamarie and Andrew (Howlin Owl Roasters), Jorge Andres Duque Zuluaga (Colombia Finca la Fe ML/Les), Graham Lamb, Cricket Cerino Burget (Fabo Koffie), Suzanne Cabral, Linda Licht, Jose Maria Fernandez, Danila Giarola and Roberto Carlos Bernardo Rocha (Cafeteria Terroir Mineiro), Justin Gaudoin, Erik Herrmann, William James, Richard Williams, Gianfranco Azzarone, Eric Dreher, Nick Batcheller and Don Batcheller (Rainshadow Coffee Roasting Company), Michael Mathis, Arize Consulting LLC, George Baxter, Vernon Patterson, Ian Duffy, Gregory Heath, Guélor Horion, Alan Swafford, Sinisa Novakovic, Rosarin Russell (Súrr Coffee Roasters), Helen Mueller (Craic Coffee Roasters), Robert Kirkwood, Jian Zhu, JoyUs Productions, Matthew Buller, Wolfgang May (Loos), Franklin Bastian, Chris Clark, Darren Randell (Dark Star Coffee Roasters), Farnaz Seifi, Stephan Wiederkehr, Alexander Shlyapkin, Roger Chapa, Adam and Briana Moore (Red Light Roastery), Rene Garcia, John Roberston (FC Roast), 山本​裕之, Silas Patlove, Paul Johnston, Liang​ Cruise and Backblocks.}

We would like to express our deepest gratitude to those who have consistently supported this project, joining the growing list of dedicated contributors:

_{Wen Tai Tan, Barry Ro, lookingafar, Norman Hardy, Evette Eickelmann, Bruce Dillingham, Crozatman, Manuel (Caffe Terzi), Doug Leblanc, JP Salvat (Paco’s Coffee), Mark Kelley, j-berg, Rick Groszkiewicz (Software Polish), Timothy Graham, bodhi-pi, Theodore Griffith, Joshua Wright, Kenneth Davids (Coffee Review Books), Rene Garcia, Wilson Wong, Gregory Cipov, Gary Tree, Nik Hawks (Gristle King), Tomoaki Nakamura (TOMO’s ROASTERY), Donald Burnham, Michael Makowski, Alessandro Domeniconi, Charles Walker and Doug Leblanc.}

This time the donations came from all over the planet, including the United Arab Emirates, Australia, Belgium, Brazil, Canada, Switzerland, Colombia, Germany, Spain, France, Ireland, Israel, Italy, Japan, Mexico, Nicaragua, New Zealand, Peru, Singapore, Thailand, Taiwan, the UK, and the US. Single donations did range from 0,20.- EUR to 300.- EUR. 25.- EUR on average. Almost 9 cents per download.

The Artisan project relies on donations from individuals and companies who value Artisan for its impact on their customers, work, or personal lives. If you’re interested in supporting this project, consider making a donation. And for an even more rewarding experience, consider becoming an artisan.plus member!

THANK YOU!

Thank you for your support and your encouraging messages like this one.

Artisan v4.0: +40k downloads. Wow!

What is new?

Connectivity

We worked together with the ROEST team to connect Artisan as well as our artisan.plus platform to the ROEST platform. Users of ROEST machines can log their roasts with Artisan and manage their inventory on artisan.plus. This works also for their new P3000 machine!

The communication with the ROEST platform is using the MQTT protocol. Thus we added a generic MQTT layer to Artisan the very same way we did for MODBUS, Siemens S7, and WebSockets before.

We also added a tight integration with the OB-1 PRO from our machine sponsor Orbiter. Check out this nice initial review of this brand-new 1.2kg machine.

Further, we added support for machines of Pratter, Neuhaus Neotec, North Roasters, the refurbished machines of Schuilenburg as well as the latest generation of Probats G/UG 2026 series which got updated this year with new software communicating via WebSockets as their P series machines.

Core

We hardened the core of Artisan by adding validation of profiles and settings on load. The community contributed Bulgarian localization (thanks, Alex!) and reported many small issues in previous versions, which we fixed and complemented with small UI improvements.

RoastGuard

It is generally accepted that when multiple roasts of the same green lot achieve the same roasting parameters, they can be considered effectively interchangeable.

Our newest artisan.plus feature, RoastGuard, takes this principle and turns it into a tool for managing quality control processes.

Supported Platforms

The platforms supported by Artisan v4.2 are

• macOS 14 Sonoma and newer on ARM (Apple Silicon)
• macOS 13 Ventura and newer on Intel (x86-64)
• Windows 10 and newer on Intel (x86-64)
• RedHat 8.6 and newer
• Ubuntu 24.04 and newer
• Linux glibc>=2.39
• Raspberry Pi OS 13 Trixie

Happy Roasting!

How do we establish quality standards for our roasts? Like with most food and beverage products, taste is the ultimate test of quality. However, cupping every roast can be time-consuming and costly. Moreover, it may be entirely unnecessary.

It is generally accepted that when multiple roasts of the same green lot achieve the same roasting parameters, they can be considered effectively interchangeable. Our newest feature, RoastGuard, takes this principle and turns it into a tool for managing quality control processes.

Parameters, Goals, Exclusions

RoastGuard tracks several relevant roast parameters, including temperatures, development, and total time, as well as monitoring temperature correlation over time, energy input, batch size, yield, roast loss, and colour.

Each of the parameters is checked against a custom goal that you can set. You simply decide which parameters should be checked and specify the acceptable ranges, either in terms of the measurement unit or as a percentage. From there, RoastGuard assesses whether roasts deviate from these parameters and notifies you.

Badges, Charts, Details

RoastGuard presents its results in a variety of ways from simple notification to more granular details which you can use to help organize quality control and roast corrections.

There is the notification badge on the RoastGuard tab which indicates the number of roasts from your last roast day that failed to meet your goals. And when viewing a roast you will find icons indicating whether it conforms to your goal values or fails to meet them.

For further precision, roasts also feature a RoastGuard icon which you can click to access the details view, to see exactly which criteria were not met and by what deviations. With this level of information, the quality control team will know exactly which roasts to cup, and the production team will be able to assess these roasts for clues on how to improve consistency going forward.

We know you’re going to love RoastGuard and all the upcoming features we’re working on for artisan users. Our goal is to help you achieve better results while also making your work more efficient and enjoyable.

From now on all artisan.plus accounts include RoastGuard!

If you’re not yet a PRO subscriber, now is a great time to upgrade or renew your subscription. Your support helps us build new features like RoastGuard and funds the open-source development of SCOPE.

Precision Batch Dosing for the Modern Roastery

If you’re at World of Coffee, come say hi and we’ll show you how COSMO integrates seamlessly with artisan features like the roast scheduler to help make your roastery more efficient and productive.

We hope to see you there!

World of Coffee, booth #7558 Jun 25 – 27 2026, Brussels, Belgium

Reach out via sandiego@artisan.plus to set up an appointment.

World of Coffee Apr 10 – 12 2026, San Diego, USA

• Infrastructure
  The infrastructure upon which Artisan is built has been upgraded. Consequently, older platforms such as Windows 8 and macOS 10.13 are no longer supported. On the positive side, this update enhances performance and stability while also resulting in smaller downloads.
• User Interface
  Artisan 4 introduces several new shortcuts, but it also introduces UI modes that simplify and improve usability, particularly in production environments.
• Automation
  The integrated PID controller was generalized to a two-degree-of-freedom PID controller, adding incorporated gain scheduling, bumpless transfer, and additional filtering capabilities.
• Hardware Support
  Support for the RoastSee NEXT live color reader from Lebrew and the Acaia Pyxis Black scale has been added.
• Roastetta A new online repository for Artisan Scope roast profiles has been established by Josh, which lets you upload, view, share and track roast charts.

We stay respectful, open and cooperative without the need for Non-Disclosure Agreements!
For sure.

Happy Roasting!

Another significant update for Artisan in terms of features and technical advances.

• Hardware Support
  Support for a list of machines has been added or updated, including Kraffe, Berto, Nordic, Prisma, Cogen, Easyster, Toper, Sweet Coffee Italia, and Joper. Additionally, popular devices like the Shelly energy meters are now supported.
• Roast Scheduling
  The scheduler now permits modifications after a roast session has commenced, provides an estimate for the remaining roast duration, and its Batch Manager indicates states using the COSMO scales’ built-in color LEDs.
• Cropster Profile Import by drag-and-drop
  Cropster’s roast profiles exported as XLS files can now be imported by simply dropping them into the profile window.
• Fermentation
  Recordings can now span several days, with a sampling interval ranging from 0.1 seconds to over 16 hours. This makes Artisan suitable for controlling coffee fermentation experiments conducted at coffee origins.
• Industrial PID Algorithm
  The integrated PID now comes with several advanced features, including Integral Windup Prevention (IWP), derivative on measurement calculation (DoM), measurement discontinuity detection, derivative limiting, and enhanced setpoint change detection to prevent derivative kicks and spikes.
• Captured BBP Metrics
  Roast operators employ a Between Batch Protocol (BBP) to insure every roast batch begins with the same thermal state. This version captures metrics to help the roast operator observe and manage their BBP. For details, refer to our separate post on Between Batch Protocol Statistics.
• Revised Custom Buttons Mechanism
  Custom button handling has been updated. For more information, refer to Button Layouts and Hidden Buttons.
• Localizations
  With the assistance of some excellent individuals, the Asian (Chinese and Korean) and Spanish localizations have been significantly enhanced. Additionally, Czech localization has been incorporated, and the support for Asian and Arabic default fonts has been improved as well.

Happy Roasting!

We presented the first scale exclusively designed for coffee roasters, the COSMO (10kg and 100kg) from Acaia. It integrates with the revolutionary Batch Manager released with Artisan v3.2.

World of Coffee, booth 1253
Jun 26 – 28 2025, Geneva, Switzerland

Happy Roasting!

Acaia COSMO: the only scales engineered for coffee roasters. Integrates into your workflow and syncs with Artisan via Bluetooth.

Happy Roasting!

Artisan on GitHub