Roast Comparator

While Artisan always allowed to load a second profile into the background, sometimes you want to compare the shape of more than two profiles. For this we introduced the Ranking Reports already in 2016 which allows to produce a nice Web page containing, next to sortable tables with the key data points of the selected roasts, a chart of all selected profiles. The drawback of this approach is that the report is static in that it is not possible to apply ad-hoc changes to navigate the representation. The Comparator allows to compare profiles dynamically.

Displaying Development Time Ratio in Artisan

Recent roast profile analysis has focused on using Development Time Ratio (DTR), rather than time, as being the appropriate measure for making changes in power or air flow after first crack begins.  Artisan allows multiple excellent methods to display DTR, and many other useful metrics too. This post will discuss how DTR can be displayed in Artisan during and after roast logging.

Artisan v2.1

This is the Artisan version we will use to prove Scott Rao wrong (or right). We extended Artisan in various ways to facilitate the application of his roasting theory.  Thanks Scott, for pushing us!

Profile Analyzer

Roasters often want to analyze their roasts to measure consistency, look for aspects of the profile that can be improved, and to create metrics to score the roast against a set quality measures.  Artisan offers many ways to provide information on a roast.  These include the Statistics Summary, Plotter and Math tabs, AUC (area under the curve), and many others.

Artisan v2.1 adds a new set of features to provide additional insights.  These features continue Artisan's heritage of exploring new ways of interpreting roast data.

Background Images

Artisan v2.1 allows you to show an image in the background of your profiles. This can be any image you choose.  It could be a logo, a picture of your roaster or anything you choose.

Symbolic Formulas: Basics, New Variables and Applications

Each Artisan input channel can be intercepted by a symbolic formula before its data is forwarded to the corresponding curve. Symbolic formulas allow to change data retrieved from the input source before it is further processed, displayed and stored in the internal data structures. In that respect, the use of symbolic formulas is usually destructive to the original data received. From Artisan v2.1 on, symbolic formulas can also be applied to the two rate-of-rise channels.

In this post we recap the basics of Artisan's symbolic formula mechanism, describe the new variables that have been added in Artisan v2.1 and explain their interplay by discussing useful applications.

Automatic Gas Control

Elvio (Mestre Cafeeiro, Brasil) is demonstrating how he uses a Phidget RC (see Artisan v1.6.1) to automate the gas control on his Atilla roaster.

Thanks for sharing!