Coffee roasting is done in different ways. Some stop roast when the beans has reach a certain color.
You can hear about this in my podcast Coffee Roasting Navigated. Episode 3 is about roasting to a certain color. We are at a roasting course with Morten Münchow from CoffeeMind. I have called the episode “Roasting by color”, but Morten focuses on more than the bean color to make a good roast.
Listen at http://coffeenavigated.net/podcast/episode-3-roasting-by-color
In Episode 7 roaster Kaya Caretta tell about looking at the color during the roast. Listen at http://coffeenavigated.net/podcast/episode-7/
Color change during the roast – samples taken out each minute of the roast.
Roasting class with Morten Münchow (on the right) from CoffeeMind.
Color and Agtron measurements of different batches.
Here you can see that #6 is darker than #5 – which is reflected in the Agtron values: #6 was 75 and #5 was 84.
A joke about the different roast degrees 😀
With permission from Jon Ferguson from USA. Follow him on Twitter at ADF2050
Episode 8 in the podcast is about the different roast degrees.