Beta profile logs

[Justine]

Hi guys I can't make the session today, but I have ran 2 profiles from the beta selection.

Screenshot log 50.png (770.69 KiB) Viewed 15334 times

Log 50 - Decaf on DECAF profile

Screenshot log 51.png (792.33 KiB) Viewed 15334 times

Log 51 - Costa Rica on GTTT 12C-15C profile

[Nutta]

Here are some logs for the GTTT profiles. Only roasted 2020-06-11, so not done any sampling yet, will be doing that from the weekend onwards...

GTTT 1500-2000

This was with Columbian Supremo beans, 100g. Colour change between 160-170degC.

log0537.klog

(75.96 KiB) Downloaded 2085 times

log0536.klog

(73.69 KiB) Downloaded 2047 times

GTTT 1200-1500

This was with Nicaraguan beans of unknown parentage, 100g. Colour change between 160-170degC.

log0538.klog

(78.66 KiB) Downloaded 1879 times

log0539.klog

(80.41 KiB) Downloaded 1732 times

[Nutta]

GTTT 2000-2700

This was with Ethiopian Yirgacheffe, 100g. Colour change between 160-170degC.

log0540.klog

(70.93 KiB) Downloaded 2122 times

log0541.klog

(73.82 KiB) Downloaded 2069 times

RTD 2000-2700

This was with Ethiopian Yirgacheffe, 100g. Colour change between 160-170degC.

log0542.klog

(86.34 KiB) Downloaded 2128 times

[mr. bean]

Hi All,

Here's some logs from recent roasts, comparing how particular beans respond to a few of the beta profiles, with a few comparisons to other shared profiles.

Peru Kontiki

peru 1200-1500 RTD 110g.png (122.27 KiB) Viewed 15308 times

peru 1500-2000 RTD 100g.png (116.95 KiB) Viewed 15308 times

peru firestarter 118g.png (122.51 KiB) Viewed 15308 times

(for comparison)


Columbian Excelso

columbian 1200-1500 RTD 110g.png (121.78 KiB) Viewed 15308 times

columbian 1200-1500 GTTT 120g.png (120.79 KiB) Viewed 15308 times

columbian 9minDark 110g.png (128.25 KiB) Viewed 15308 times

Kenya Lena AA

kenya lena AA 1500-2000 RTD 110g.png (124.84 KiB) Viewed 15308 times

kenya lena AA 2000-2700 GTTT 110g.png (118.46 KiB) Viewed 15308 times

kenya lena AA 9minDark 110g.png (125.66 KiB) Viewed 15308 times

* comment on the beta profiles with the Kenya: even at 110g the beans weren't moving, and I figured they were going to burn. For both roasts I kept manually moving the beans with a pen every now and then to get them moving. Not sure if this could have possibly messed with temp readings and thus control system...

Guatemala Antigua

guatamala antigua 1500+ GTTT 110g.png (114.52 KiB) Viewed 15308 times

Some general comments/questions about the profiles...
- The cool down cycle seems to go for a VERY long time! Is something going wrong??
- Is there a reason you don't start with higher fan speeds? Some of the roasts (i.e. kenyan above, as well as a 120g Costa Rica on 900-1200 GTT) didn't move enough at the start
- I've had to stop all the beta profile roasts around 2.0 (2.5 at most!), to keep it under 27% development. Do you guys intend to make versions designed for slightly darker roasts that will also have ~25% development?

Thanks!

[mr. bean]

GTTT 2000-2700

This was with Ethiopian Yirgacheffe, 100g. Colour change between 160-170degC.

log0540.klog
log0541.klog


RTD 2000-2700

This was with Ethiopian Yirgacheffe, 100g. Colour change between 160-170degC.

log0542.klog

Hi Nutta,

I used your Yirg RTD roast log to create a tweaked version (screenshot and log below). I think it helped smooth things out from 1st C onwards.

Changes were essentially:
increased starting fan speed.
added strong short boost (15sec @ 4) towards end of ROR drop coming into 1st Crack
weakened 3rd boost (3 => 2) but extended it for longer
weakened 1st boost (3 => 2)
recommended level 2.2 to give 25% DTR

Yirg 2000+ yirg edit 100g.png (118.84 KiB) Viewed 15300 times

log0090.klog

(73.26 KiB) Downloaded 2033 times

[Justine]

All 3 had good strong first cracks.
I missed or didn't get to 2nd crack with the decaf on either GTTT or RTD which I usually do

120g decaf (sugar process)
Went well with milk on days 1, 2 and 3

log 1 decaf - RTD 15.png (703.15 KiB) Viewed 15216 times

120g Costa Rica
Good as a latte on days 1, 2 and 3

log 2 Costa Rica - RTD 12.png (727.53 KiB) Viewed 15216 times

120g decaf (sugar process)
Stood up well to milk on days 2 and 3 (thought it was RTD so drank early!)

log 3 decaf - DECAF.png (742.05 KiB) Viewed 15216 times