Visual scope for coffee roasters
Your First Roast
Install artisan and configure as described in “Installation.” This chapter will introduce the basic functions of artisan and the how to use with your roaster and data logging device.
This example is built on an Omega HH506RA datalogger connected to a HotTop KN-8828B roaster with artisan running on a PC with Windows 7 (64 bit).
This is the screen when artisan is started.
The two areas of interest for the first roast are the events buttons (green, orange, red and yellow at the bottom) and the File, Roast, Conf and Help menu at the top.
1. Entering the Roast Properties
Click on Roast / Roast Properties…
In the General tab enter the details of the beans to be roasted.
The Notes tab can be used for roasting and cupping notes.
The Events tab is used to viewing non-standard events such as power or fan settings.
Click OK to close.
All information about the roast is stored in a text (.txt) file referred to in artisan as the “Profile.” Click on File / Save As… and save the file. Now that the Profile is saved to a file, it can be updated by clicking Ctrl+S at any time.
2. Start Recording
Start the roaster and digital interface.
Click on green ON button in the events area to start recording temperatures from the roaster. Click on the appropriate event buttons as they happen. At a minimum you need ON, CHARGE, DROP and OFF.
Standard events include:
- ON – Start recording temperatures
- CHARGE – Charging (loading) the roaster with green beans
- DRY END – Beans are dry
- FC START – First Crack Start
- FC END – First Crack End
- SC START – Second Crack Start
- SC END – Second Crack End
- DROP – Drop roasted beans into cooling tray
- OFF – Stop recording temperatures
- EVENT – Add a non-standard event
EVENT is used to add other events such as power (heat) changes and fan setting changes.
On the graph the Y-axis on the left is the temperature, the X-axis on the bottom the time and the two lines in the graph the Environment Temperature (ET – RED) and Bean Temperature (BT – Blue). As the bean temperature is almost always cooler than the environment temperature, the hotter temp (ET) is red and the cooler (BT) blue.
Once you click OFF to stop recording, either click on FILE / SAVE or Ctrl+S to save the results.
If you want to have an image of the final result click on the diskette (Save Figure) icon. You will be prompted for a file name and location. The image is saved in PNG format.
Congratulations. You have recorded your first roast and saved the results in an artisan profile.
Adding Cupping Profile
Usually the cupping profile is added later. Start artisan and with File / Open… or File / Open Recent load the profile again.
Click on Roast / Cupping Profile…
The Axis value can be changed and the sliders set to match your cupping results. The results will appear.
As of version 0.5.0 a selection of profiles are offered including: Artisan, SCCA, CQI, Sweet Marias, C, D.
When the Cup Profile window is closed the screen will revert to the temperature graph. To view the graph as well as the cupping profile select File / Create HTML Report. The files:
are created in the program folder.
[Note: Random values were used for cupping profile example.]
Click on FILE / SAVE or Ctrl+S to save the final results.
Tip: Click the event button in artisan then do the actual event. If you click in the program first the delay time will be consistent.