How to create a Pre-roast blend

This article explains how to create a Pre-roast blend and roast it with Cropster. 




What is a Pre-roast blend?


A pre-roast blend refers to the process of combining various green coffee beans before roasting them together as a single batch.

With Cropster you can create a pre-roast blend via the online platform C-sar, then roast it with the Roasting Intelligence (RI).

The main steps of creating a Pre-roast blend with Cropster


By following the steps below, you can create a Pre-roast blend:

  1. Log in to the online platform C-sar.
  2. Navigate to Roasts on the main menu bar and select Profiles. You will be directed to the Profiles overview page
  3. Select the +Add profile button located at the upper right corner of the page.
    Screenshot 2025-03-14 at 09.13.55
  4. Select the Pre-roast blend option to start with. 
    Screenshot 2025-03-14 at 09.15.36
  5. Enter the following information:
    * is indicating mandatory fields
    • Profile name*
    • Profile group
    • Name roasted batch using
      • Use profile name
      • Custom name 
    • Reference roast
    • Express green lots as:
      • Weight
      • Percentage
    • Associated green lots 
      💡 You can add more than two components.
    • Ideal batch size
    • Expected weight loss
      💡 If you leave this field empty, Cropster will take the average weight loss after 10 roasts.
    • Restrict profile to these machines
    • Add to a project
    • Notes
    • Exclude this profile from the global roasting goals by clicking on the respective checkbox
  6. Save the Pre-roast blend by clicking on Create profile.

📚 Learn more about managing Profiles

Roasting a Pre-roast blend with the Roasting Intelligence (RI)


By following the steps below, you can roast a Pre-roast blend with the Roasting Intelligence (RI):

  1. Open Roasting Intelligence (RI).
  2. Click on the SyncIcon@2x Synchronize button on the bottom left side of the screen. This step will update the RI regarding the latest changes you made within the online platform C-sar.cropster.freshdesk.comensupportsolutionsarticles228552-how-to-synchronize-the-rihit
  3. Review the components of your blend via the Next roast screen
  4. Review the components of your blend.
  5. If the Total start weight is adjusted, the start weight of each component will be adjusted according to the blend ratio.
  6. Click on Start.

Here are some important considerations to keep in mind when roasting a Pre-roast blend:

  • If necessary, you have the option to modify the components directly within the Roasting Intelligence (RI) before starting the roasting process.
  • If the required weight exceeds the available weight, a warning message will appear, indicating this discrepancy. 
    💡This serves as a reminder that while you can still proceed with roasting, adjustments may be necessary through the online platform C-sar to ensure optimal results.

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Congratulations! You are now ready to roast a Pre-roast blend and roast it with Cropster. 

Your opinion matters. If you have further questions, feedback, or concerns, please feel free to reach out by submitting a support ticket directly from support.cropster.com