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Inconsistency problems
BeefTips
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Posted on 06/06/2018 10:11 PM
I recently finished my BM build and have done a few roast. So far I'm loving it! I love the process and the coffee has been way better than what I expected. I'm just curious as to how to get a more even roast. I have some beans that look more full city plus and some a good city. I've been roast 1lb at a time. Don't know if I need to back down the size of my roast. I have good agitation I think. I have the HG 3-4 inches above the beans with it in the lid of the BM. Any suggestions. Would adding a exhaust help?
 
BeefTips
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Posted on 06/06/2018 10:22 PM
Here is my profile, the batch, and a close up of the problem.
BeefTips attached the following images:
inconsistency.jpg rwanda2.jpg rwanda1.jpg
 
Koffee Kosmo
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Posted on 06/07/2018 7:00 PM
Agitation is very important
If your BM paddle shape is not mixing thoroughly it will create hot spots at the heating point

Or you may have a hot spot from the Heat Gun
Try a diffuser

Then again some ungraded beans of different size in the same batch will roast at different rates

KK
I home roast and I like it. Designer of the KKTO
Roaster Build information
https://homeroast...ad_id=1142

https://docs.goog...lide=id.i0
Blog - http://koffeekosm...gspot.com/

Bezzera Strega, Mazzer Robur Grinder, Pullman Tamper Convex,
(KKTO) Turbo Oven Home Roaster.
 
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BeefTips
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Posted on 06/07/2018 8:12 PM
How can I test see if it's my paddle?

The only diffusers that come with the hg are smaller than the original. Would that help?

How can I prevent that beam problem? Is it a source issue or an origin or something else?

Thanks for the help.
 
Koffee Kosmo
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Posted on 06/07/2018 9:43 PM

Quote

BeefTips wrote:

How can I test see if it's my paddle?

The only diffusers that come with the hg are smaller than the original. Would that help?

How can I prevent that beam problem? Is it a source issue or an origin or something else?

Thanks for the help.


1) Place 3 to 5 coloured beans in the BM with your regular amount you roast and observe the mixing (use nail polish )


2) Anything to break / diffuse the straight line to the bean mass

3) Can?t do anything about bean processing and grading ? move on and try other beans
Although you can spritz the green beans with water ( 1 or 2 trigger sprays ) as it may help to even out the moisture levels

KK
I home roast and I like it. Designer of the KKTO
Roaster Build information
https://homeroast...ad_id=1142

https://docs.goog...lide=id.i0
Blog - http://koffeekosm...gspot.com/

Bezzera Strega, Mazzer Robur Grinder, Pullman Tamper Convex,
(KKTO) Turbo Oven Home Roaster.
 
Web
BeefTips
Top  #6 Print Post
Posted on 06/07/2018 9:46 PM
Thanks for the info!
 
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