Agtron ratings

Discuss flavors, brew temperatures, blending, and cupping notes.

Postby berfles » Dec 05, 2017, 10:34 am

I just found out about Agtron ratings but I'm seeing some numbers like 53/75. From what I've read, it can go above a rating of 75, but is the figure I quoted just saying that particular coffee is a 53 out of 75? Been looking at JBC coffee and they are the first I've seen to use this rating scale.


Postby RockyIII » Dec 05, 2017, 3:09 pm


The two numbers represent the range of the roasted beans in the blend.



Postby Moxiechef » Dec 05, 2017, 3:25 pm

They may represent whole bean and ground measurements.


Postby RockyIII » Dec 05, 2017, 3:33 pm

Ah, that makes more sense. Thanks for the correction, Jonathan.



Postby berfles » Dec 07, 2017, 11:01 am

Why does whole bean and ground differ in roast ratings?

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Postby another_jim » Dec 07, 2017, 1:06 pm

The surface of a roasted bean is darker than the interior. Since the whole bean rating is the color of the surface; it will be lower than the ground rating, which also includes the less roasted interior. The ground rating tells you how dark overall the roast is; the difference between the two ratings tells you how fast the roast went (the bigger the difference, the faster the roast). In general, faster roasts at the same ground Agtron level have more intense and more widely spread flavors; longer roasts have more focused, mellower flavors.
Jim Schulman