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Changing Or Removing A Control Value On The Chart

Setup HelpReviewed 2026-10-19

Summary

From Rostoc 0.4.8, a gas, airflow or drum value you typed can be changed or removed on the chart, during the roast or after the batch is saved. Hover the control's line in the lower chart, click the handle on the value, and choose Change value or Remove. The saved batch keeps the correction. Only values you typed can be changed: a value the machine reported, or a change Rostoc sent to the machine, stays as recorded.

Steps

  1. Open the roast's chart: Roast Studio while the roast is recording, or the batch page (Batches › the roast) once it is saved. The batch page works the same in the web app.
  2. Hover the control's line in the lower chart. A handle shows on each value you typed.
  3. Click the handle. The chart's menu opens on the value, for example Gas 156 %, with Remove and Change value. Escape closes it.
  4. To fix the value, choose Change value, type the right one, and press Enter or click Save. Back returns to the two choices.
  5. To delete it, choose Remove. The line steps back to the value before it; removing every value of a control takes its line off the chart.
  6. A gas or airflow value above 100 % is asked about first: "Gas 120 % is above 100 %. Record it anyway?" Enter alone does not record it; click Record 120 % if it is meant, or type another value.
  7. In Roast Studio after Stop, the values become clickable again once the roast has reached the account. Until then, correct it from the batch page later.

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