Using the Roast Explorer

This article shows you how to use the Roast Explorer. 

What is the Roast Explorer?

The Roast Explorer is used to visualize roast parameters. It helps you to recognize patterns and even estimate the strength of correlations between different parameters.

In the report you can choose from a total set of 12 key parameters including duration, weight, charge/end temp, color values, quality (cupping), development time and development ratio.

In the graph, each parameter is mapped onto a vertical axis. Each value of a roast is drawn between the minimum at the bottom and maximum at the top of an axis. The points belonging to the same roast are connected with lines.


The best way to get to know your dataset is clearly by interaction.

Roast Filtering

Filter the roasts you want to take a closer look at. Use the date (top right) and set Advanced Filters (below the chart) to reduce the roasts shown in the chart.


The main tool in Roast Explorer is called brushing and can be seen in the screenshot below. 

This is done by hovering over an axis, which will turn the normal mouse arrow cursor into a crosshair. A specific range within an axis can be selected by holding the left mouse button and moving it up or down. Releasing the button will fixate the selection. Moving the mouse to the bottom or top of the selection enables expansion or reduction of its size. Hovering over the the selection box allows for repositioning of the selection along the axis. To clear the selection, click outside of the selection box on the same axis. This can be done in several axis.

Adding/Removing Axis

You can add or remove axis by opening the Settings drop-down and ticking or unticking the parameters displayed. You can save these changes by clicking the save button, displayed as a disk symbol, next to the drop-down.

Axis Ordering

The axis can be reordered by hovering over the name and holding down the left mouse key while moving it across the graph. You can also save the order by clicking the save button, displayed as a disk symbol, next to the Settings drop-down. If they are not saved, changes are only temporary and will be lost after reloading or reopening the page.


The colors of the lines are defined by the selected axis and runs from blue to red. The name and scale of the selected axis is displayed in bold. Values at the bottom of the scale (lower values) are displayed in blue, values at the top of the scale (higher values) are displayed in red. Whereby values in between transition from blue into red.

Viewing in the Roast Compare Report

Once you have singled out roasts that you want to compare in greater detail, then you can visualize these in the Roast Compare report. Clicking on the View in Roast Compare button will automatically open the Roast Compare report with the roasts from the Roast Explorer. Please keep in mind that this will only work if you have fewer than 50 roasts displayed in the graph. You can use the date or lot filter as well as the brushing technique to reduce the roasts that are counted.

Congratulations! You are ready to use the Roast Explorer! 

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We design and make alterations to our software based on user feedback so we look forward to seeing what you have to say!