Testing the Behmor on a P1 setting with a Costa Rican .
washed, DOTA Tarrazu hermosa
I decided to try from a cold start.
And kept the door closed during the 13 min cooling cycle
Time A B
0 0 0
1 34 45
2 32 72
3 32 97
4 92 113
5 142 121
6 169 130
7 185 137 - FC
8 198 139
A = Exhaust temp
B = Side wall temp
Total roast time : 8.30
I think at 8.30 mins it was reaching 2nd crack
My aim was a medium but this is dark
100g in. 81.3g out
thus 18.7 % weight loss
The Behmor instructions recommend letting the machine run the complete cooling cycle
however I may want in the future to quickly stop the roasting.
Maybe see how the P2 setting goes with These same beans?
Or maybe hit the cool button at first crack.
The extra 1.30min makes a difference.
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I did another roast using the same Costa R beans
This time I used the P2 setting
same 100g of beans
A = Exhaust temp
B = Side wall temp
Time A B
0 0 0
1 31 47
2 31 74
3 31 97
4 100 104
5 138 104
6 162 109
7 178 121
8 191 131
8.14 FC
I stopped the roast and started the 13 min cooling cycle at 8.14mins.
Door was left closed.
The exhaust temperatures seem to be the most useful.
My aim was a medium and this looks OK .. maybe even a tad light
100g in. 87.3g out
thus 12.7 % weight loss
The P2 setting ramps to 100% power in 20/100 time,
and maintains this till 60/100 time.
then drops to 65% power.
Settings p3,4,5 all rise over time.... though more slowly, and in steps.
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I think manual mode is called for in the next roast.
Maybe the next roast will be this method:
1. do a pre-heat.
2. Press a weight & hit start with the auto P2 or P1.
3. then press C at first crack (this resets the timer to the approximate time it takes to
go from 1st to 2nd crack. It's 1.40min for 100g, 2.20min for 200g, 3.10min for 400g ).
4. Press P3 (at the same time you press C). P3 is 50% power.
I am trying to stretch the time between 1st and second crack. This is how you sweeten the cup.
If you want a brighter cup to keep the heat high.
(P3 should be flashing to indicate its in manual mode).
5. press 'cool' when finished. Just open the door and pull the chaff tray out a bit.
(If you want the 2nd crack to come quicker press C5- higher temp/100% power).
Increasing the drum speed will create more bean loft and more heat penetration.
This is a link to the RoastRebels page with some roasting suggestions:
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Coffee index. Click here :
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