Posted by renatoa on 01/26/2022 2:18 AM
#6
Noooope !!! not copy my profile, because machines are different as power and airflow !
Please, first build the power-level table, then let's analyse a bit, focusing on your existing roasts.
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How do you tell when the drying phase ends aside from just by looking at the color of the beans?
I don't, it is stamped automatically by Artisan on the graph, after the fact.
The roast is done with a custom controller, without a computer.
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...FC @ 7:14 with a temp of 411F. What is unusual about that? I hit FC around 410F every time I roast.
Yep, because both are high airflow machine.
On a classic setup, like a drum, the "standard FC" happens under and close to 200C/400F.
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it is difficult to keep the temperatures low and so I usually start with the fan on maximum speed and power on the lowest setting.
This means the level 1 of heater on SR540 is set too high by the factory... it should be under 600W for 100 grams, your measurements will confirm this... or not...
On my machine where the heater levels are under my total control, the start power level is 500W, this is 25% of 2000W.
There is nothing bad to start with a higher level of power, if the air temperature for this level don't exceed 200C/300F. It's an usual load temperature in a commercial roaster.
Maybe your need to increase the power so much on the final is because you keep beans so much on level 1, and they don't accumulate enough heat. Is exactly the reverse of a typical roast strategy, where heat is pumped in excess at the beginning of roast, and lowered a bit at the end.
You can see from the stepped graph that it was already to level 4 (45%) in the second minute, not after 4-5 minutes...
Edited by renatoa on 01/26/2022 4:38 AM