I recently bought a new Hottop B-2K+ to replace the Hottop B-2K that I bought in 2012. The old machine was modded quite a bit, and is showing signs of age. For the last two years, I had some problems with overheating (beans auto-ejecting at ET 428).

Today I did a few roasts on the new Hottop B-2K+, and I was surprised at the difference in the roast curves. The ROR gets much higher in the new Hottop, and the roast is 2-3 minutes faster.

Based on my first roast yesterday, I made an adjustment in Config / Device / Symb ET/BT so the new Hottop thermocouples give similar readings as the old Hottop did. That way I could use the same alarm files for the artisan software, and compare roasts between the two Hottops.

The first image shows the roast of Sumatra Harimau Tiger on the old Hottop in March 2018:

The next image shows the roast of Sumatra Harimau Tiger on the new Hottop in June 2018.
After that is the artisan graph with the prior roast shown as the background profile.

The first image shows the roast of Honduras Maya Royal Decaf on the old Hottop in March 2018:

The next image shows the roast of Honduras Maya Royal Decaf on the new Hottop in June 2018.
After that is the artisan graph with the prior roast shown as the background profile.

I no longer have any of those March 2018 roasts to do a head-to-head comparison. I have to wait a few days for the coffees to mature before I can taste them.

Hi Rick,

I'm curious what you updated in Artisan to get the 2k+ to look more like the previous Hottop. I'm also curious what your Artisan settings are for things like sampling interval, smoothing, delta span, etc. From what I remember, Marko from Artisan mentioned that the 2k+ probes don't have the best precision.

I hope the coffee turns out great regardless of what the graphs look like!!

-Adam

I just cranked up the smoothing until the graphs looked similar to me. First image is settings for the old Hottop B-2K, second is the new B-2K+ settings.