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allenb
12/14/2019 12:44 AM
Yes, 1st off, you must use only Panama Esmeralda Geisha beans and be sure to only roast on Saturdays. Actually, this isn't completely true. Please post in all about roasters forum. Thx!

wjohndon4566
12/13/2019 10:36 AM
I’m at 9,000 feet elevation, is there any special adjustments that need to be made to roast using an SR 540 at this elevation?

snwcmpr
12/07/2019 9:29 AM
roar

snwcmpr
11/27/2019 11:44 AM
greenman

allenb
11/27/2019 11:04 AM
Nice! I know Netrix is going through things and tweaking as he see's issues

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Judging the difference between Dark and Burnt
misterdoggy
Hi all,

I am new to roasting. I am beginning to see that when the bean is almost black after only the FC that it may be that it is not burnt, but dark.

question is, when is a bean considered "burnt" and when is it just "Dark" roasted.

I am using Eithiopian Harare and the roast is mixed color and mixed finish. Some beans are brown with spots of dark dark brown almost black but not black. I think this just maybe normal.

I go to FC tune down for 3.5 minutes and go to cool so it can be a light roast, but even light seems some beans darker.
 
http://www.posterclassics.com
Randy G
Black after first crack? Mixed color and finished? There is a problem. My first guesses are either too high an environmental temperature or too high of a drop in temperature.

Life's too short to drink bad coffee.
 
http://www.EspressoMyEspresso.com
misterdoggy
Not black after FC sorry, I meant to say at the end of a roast which consisted of FC and 3.5 minutes before cooling.

Black isn't the word maybe dark dark
 
http://www.posterclassics.com
seedlings
A picture would be very helpful, especially if you can do one of those "macro" up-close jobbies.

Also, what's the culprit roaster?

CHAD
Roaster: CoffeeAir II 2# DIY air roaster
Grinder: Vintage Grindmaster 500
Brewers: Vintage Cory DCU DCL, Aeropress, Press, Osaka Titanium pourover
 
John Despres
I think Mr D is using a Gene Cafe.

Is the chaff collector fully cleaned out? Restricted airflow could cause some serious problems. I vacuum mine out every time I roast.

John
Edited by John Despres on 04/08/2010 3:02 PM
Respect the bean.
John Despres
Fresh Roast 8, Gene Cafe, JYTT 1k, Quest M3, Mazzer Mini, Technivorm, various size presses and many more brewers.
 
www.sceneitallproductions.com
gene
Also what about visible oil? Surely you have some spotty or solid oil on the beans that won't be visible immediately after the roast. But will appear the next day.

That is why a close-up could be so valuable in trying to evaluate.

gene
 
Koffee Kosmo
If you are getting mixed colours at end of roast

Its one of 3 things
1] Poor heat distribution
2] Poor agitation
3] Beans are picked not quite ripe at the farm and mixed with fully ripe beans & they roast differently at any given time

KK

I home roast and I like it
Blog - http://koffeekosm...gspot.com/
Bezzera Strega: Mazzer Robur Grinder: 5 Box hand grinders: Pullman Tamper Convex: (KKTO) Turbo Oven Home Roaster: CONA Glass Rod Syphon: Pyrex Brewer:
 
http://koffeekosmo.com.au
misterdoggy
I will take a macro foto. I got the beans from hasbean in the UK and I think they are good at picking their beans.

I didn't notice "oils" but the taste is good now.

I think I was confusing dark color with burnt and mixing them up. As the roast tastes great now, but with darker spots on the beans.

I will post a macro shot for your opinions

thanks all
 
http://www.posterclassics.com
misterdoggy
Here is a "macro" shot. Click on the image and it will enlarge. Note that it tastes good. Even the local roaster says Harare cooks unevenly and actually my roast looks similar to theirs. Like the dark spots aren't burnt just dark spots. At the same time there are beans lighter.
My roast is 5 minutes @ 300F/149C then push to 470F/243C to FC, then lower to 232C for 3.5 minutes then 1 minute cool to E stop for fast cooling.

Any comments would be appreciated. It tastes pretty good. But wondering if I can do better.

also note: that the foto "might" exaggerate how dark the beans are on the dark side.
misterdoggy attached the following image:
beans_1.jpg

Edited by misterdoggy on 04/10/2010 10:37 PM
 
http://www.posterclassics.com
John Despres
Your picture looks like a fairly typical Ethiopian roast. If it tastes good, you're doing it right, I would think.

Next roast, try skipping the 1 minute cool in the drum, or cool 2 minutes in the drum. Experiment.

John
Respect the bean.
John Despres
Fresh Roast 8, Gene Cafe, JYTT 1k, Quest M3, Mazzer Mini, Technivorm, various size presses and many more brewers.
 
www.sceneitallproductions.com
misterdoggy
I tried instead of 3.5 minutes after FC to go 3.0 minutes and see what happens. Its a slight tiny bit less dark. I'm waiting to try it. I figure the 1 minute cooling process is an important part of the cooking as it continues to cook but at a slower rate during that minute.
 
http://www.posterclassics.com
seedlings
Some scorching of the beans... although that's exactly like they roast it in Ethiopia. This is in a GeneCafe? Hmm. Could the starting temperature be too high?

CHAD
Roaster: CoffeeAir II 2# DIY air roaster
Grinder: Vintage Grindmaster 500
Brewers: Vintage Cory DCU DCL, Aeropress, Press, Osaka Titanium pourover
 
John Despres
Good point, CHAD.
Mr. D, are you preheating your roaster or starting from cold? If preheating, how high?

John
Respect the bean.
John Despres
Fresh Roast 8, Gene Cafe, JYTT 1k, Quest M3, Mazzer Mini, Technivorm, various size presses and many more brewers.
 
www.sceneitallproductions.com
misterdoggy
I start the machine cold. The go to 300F/149C and turn for 5 minutes. These type of beans are fairly dry to begin with.

Then at the 5 minute mark boost to 470F/243C until FC which doesn't seem to happen at the same time. It can vary a minute or even 2 at the most.

At FC lower temp to 449F/232C for 3.5 minutes to get the same as in the picture. Thats with a 1 minute cool and E stop tofast cool. I felt the blackish marks on the beans were "scorching" and that's why the concern.

I have done another batch identical except went 3 minutes after FC and 1 min cool to E Stop Cool and they have less scorching.

Big question is whether or not to grill at lower temp to fc or less time after fc or what ??
 
http://www.posterclassics.com
John Despres
Do you put the exact same amount of beans in every time?
John
Respect the bean.
John Despres
Fresh Roast 8, Gene Cafe, JYTT 1k, Quest M3, Mazzer Mini, Technivorm, various size presses and many more brewers.
 
www.sceneitallproductions.com
misterdoggy
Exact same amount measured to the gram 250gr
 
http://www.posterclassics.com
seedlings
misterdoggy wrote:
I start the machine cold.

...

Big question is whether or not to grill at lower temp to fc or less time after fc or what ??


We are talking about a genecafe and not a BBQ grill, right? I ask because you mention 'grill'.

CHAD
Roaster: CoffeeAir II 2# DIY air roaster
Grinder: Vintage Grindmaster 500
Brewers: Vintage Cory DCU DCL, Aeropress, Press, Osaka Titanium pourover
 
Koffee Kosmo
I will give you my roast method for African beans
Pre heat roaster & add beans
Slow ramp up to 205/210 deg C in 14/15 minutes and 1st crack
Control second crack time at 7/8 minutes past 1st crack at about 220 deg C when you will achieve 2nd crack

Allow a minimum 10 days degas & rest or the beans will taste yucky

KK

I home roast and I like it
Blog - http://koffeekosm...gspot.com/
Bezzera Strega: Mazzer Robur Grinder: 5 Box hand grinders: Pullman Tamper Convex: (KKTO) Turbo Oven Home Roaster: CONA Glass Rod Syphon: Pyrex Brewer:
 
http://koffeekosmo.com.au
misterdoggy
seedlings wrote:
misterdoggy wrote:
I start the machine cold.

...

Big question is whether or not to grill at lower temp to fc or less time after fc or what ??


We are talking about a genecafe and not a BBQ grill, right? I ask because you mention 'grill'.

CHAD


Sorry, I've been speaking French for too long and forget my English. Roast the beans :)
 
http://www.posterclassics.com
misterdoggy
I was very happy with the roast with going only 3 minutes after FC at 232C

Very small amount of scorching almost imperceptible

Had that chocolate taste

Interesting post about going thru 2nd crack, those beans would be way to dark for my light tastes
 
http://www.posterclassics.com
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