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Using Gas Control & Replay Assist

Written by Nikolett Takacs

Updated at April 8th, 2026

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Table of Contents

Overview Instructions Setting up the Gas control measurement Roasting with Gas control Replaying a roast 

 

If Gas control is in Beta for your roast machine, please sign up here. Beta testing helps us catch minor flaws through real use. If you notice any unexpected behavior, please let us know. Your feedback is vital, and we're here to resolve any issues or explore alternative connections. 

 

Overview 

This article introduces the setup for Cropster's Gas control and Replay Assist feature. Cropster's Gas control allows you to regulate the gas directly within Roasting Intelligence. 

Instructions

Setting up the Gas control measurement

 

⚠️ Essential Prerequisites:

  • Before you begin configuring your roast machine, ensure that you have added it via the online platform C-sar.
  • If the Gas control is not shown in the Preferences in Roasting Intelligence, it must be added before it can be set up.
  • Always check your roast machine setup manual first for the correct Roasting Intelligence version and configuration steps. 
 

 

  1. Log in to Roasting Intelligence.
  2. Navigate to thePreferences > Machine > Configurations tab.
  3. To choose the Roast machine, click on the dropdown menu in the Machine section. 
  4. Click + Add connector and select the relevant option from the dropdown list.
  5. Click Select to add the connector.
  6. Navigate to the Machine > Slider controls tab. To activate the Slider controls, click the green toggle button. 
  7. Scroll down to the Gas control measurement and select the connector option representing your machine.
  8. Click Save to finalize the changes. 
  9. Restart Roasting Intelligence. If the setup was successful, you will see the Gas Slider control temperature values displayed on the right-hand side of the screen.  

 

Roasting with Gas control

  1. Start your roast as you usually would with Roasting Intelligence. 
  2. Instead of using your roast machine's physical control board, you can easily adjust the gas using the Slider control on the right side of the Roasting Intelligence screen: 
    • For small gas adjustments, use the  - and + buttons.
    • For big adjustments, use the Control bar by dragging and dropping the slider.
    • For instant adjustments, click the percentage values shown on the Gas control bar to instantly adjust the gas value accordingly.
    • Input values directly and receive immediate feedback as you adjust the Slider controls.
    • Detach the Slider control by clicking on the Detach sidebar button
       


Replaying a roast 

After you've created a Reference roast using Gas control, you can use the Replay Assist feature. Roasting Intelligence will automatically adjust the drum speed based on your Bean temperature to match the original roast. 

⚠️  Never leave the roast machine unattended while replaying a roast. Cropster replays the roast and captures the details, but you are always responsible for monitoring the roast machine to ensure it is operating safely.

 

If you have further questions, feedback, or concerns, please submit a support ticket directly from support.cropster.com.

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