Why can't I set a reference curve

This articles shows what to do when a roast can't be set as a reference.

A missing star indicates that the roast has been roasted without a profile. 

To assign a profile retroactively, follow the steps below:

1. Go to the Roasts overview page
2. Enable the Profile column by clicking the Customize-button and checking the box next to Profile
3. Click +Add profile
4. Choose the profile you want to set this roast as reference for from the drop-down menu.
5. Mark the roast as reference by clicking the star-symbol.