If you post-roast blend, that is blend after a coffee is roasted, then the Blend task will guide you through what to blend to fulfill orders on your production run.
If you don't post-roast blend, don't worry - this task will never appear!
You can mark individual roasts as "blended" as your day progresses, as shown in the example video below:
Please note that you may need to use Carryover when creating post-roast blends. RoasterTools prefers to 'consume' carryover in blends before single origin coffees.