Originally posted by 665A534B5E3F0 link=1260345064/8#8 date=1260607195
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First roast using data logger.
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Re: First roast using data logger.
Roasted another batch of this yesterday, took it to second crack, different result altogether, no trace of the earthy notes, could even benefit from another minute or so longer, very pleased with the result. ;D
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Re: First roast using data logger.
Not completely, its improved but still a long way from being one of my favourites.Originally posted by 14222926332835470 link=1260345064/19#19 date=1261117622so "time heals all wounds" then?
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Re: First roast using data logger.
so "time heals all wounds" then?
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Re: First roast using data logger.
Excellent news Jon...Originally posted by 526E677F6A0B0 link=1260345064/17#17 date=1260916539You were right Mal, 7 days after roast and the taste/flavour has changed significantly, most of the earthiness has disappeared and it really has improved, particularly with milk.
Mal.
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Re: First roast using data logger.
You were right Mal, 7 days after roast and the taste/flavour has changed significantly, most of the earthiness has disappeared and it really has improved, particularly with milk.Originally posted by 4B66626E630F0 link=1260345064/9#9 date=1260692921Even tough you may not enjoy brews made with them at the moment, keep trying them every day to take note of how the flavour develops.
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Re: First roast using data logger.
Interesting, Stopped mine @ a touch over 15 before second crack, I had a feeling they were a little under done, discovered I have another kilo of this one so will roast some more in a few days and take it a little past 2nd crack.Originally posted by 193D343437370D193D213F3D520 link=1260345064/15#15 date=1260760158Originally posted by 073B322A3F5E0 link=1260345064/8#8 date=1260607195OK this is the end result, 500 grams of Sumatra Panjang Mandheling.
The flash makes some of the beans look lighter than what they are, on the overall roast colour was quite consistent.
At the time of posting the pic had not tried this batch, have since done so and am not exactly over the moon about it, reckon I stopped too early, its quite light and has an earthy taste! I suspect taking it to second crack would have improved it out of sight.
This was the last of the bag, as I recall previous darker roasts have been much better, sadly I made no notes so am really only guessing, wont make the same mistake again.

I recently roasted 600gr this bean
My notes are
11.30 first crack
16.10 second crack
Pulled & cooled 40 seconds into 2nd crack
Got a rich ooozy pour and chocolate flavours after 6 days degas
RE photos with flash
Learnt from similar photo mistakes to you
I found that taking photos at an angle gives better realistic photos (but still does not make me a better photographer)
KK
Thanks for the tips.
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Re: First roast using data logger.
Originally posted by 073B322A3F5E0 link=1260345064/8#8 date=1260607195OK this is the end result, 500 grams of Sumatra Panjang Mandheling.
The flash makes some of the beans look lighter than what they are, on the overall roast colour was quite consistent.
At the time of posting the pic had not tried this batch, have since done so and am not exactly over the moon about it, reckon I stopped too early, its quite light and has an earthy taste! I suspect taking it to second crack would have improved it out of sight.
This was the last of the bag, as I recall previous darker roasts have been much better, sadly I made no notes so am really only guessing, wont make the same mistake again.

I recently roasted 600gr this bean
My notes are
11.30 first crack
16.10 second crack
Pulled & cooled 40 seconds into 2nd crack
Got a rich ooozy pour and chocolate flavours after 6 days degas
RE photos with flash
Learnt from similar photo mistakes to you
I found that taking photos at an angle gives better realistic photos (but still does not make me a better photographer)
KK
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Re: First roast using data logger.
Thanks for the tips Mal, will do.Originally posted by 072A2E222F430 link=1260345064/13#13 date=1260712552You could pretty well settle on any decent PNG varietal for roast evenness and ease, ditto for decent Peruvians, Colombians and Tarrazu varietals too. Have a glance through the Green BeanBay selections and read through Andys notes, he makes mention of bean varietals available that are easy roasters....Originally posted by 724E475F4A2B0 link=1260345064/12#12 date=1260702917Thanks for having a look TG, have taken your comments on board, so now the search begins for beans that roast evenly. :

Mal.
JW.
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Re: First roast using data logger.
You could pretty well settle on any decent PNG varietal for roast evenness and ease, ditto for decent Peruvians, Colombians and Tarrazu varietals too. Have a glance through the Green BeanBay selections and read through Andys notes, he makes mention of bean varietals available that are easy roasters....Originally posted by 724E475F4A2B0 link=1260345064/12#12 date=1260702917Thanks for having a look TG, have taken your comments on board, so now the search begins for beans that roast evenly. :

Mal.
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Re: First roast using data logger.
Thanks for having a look TG, have taken your comments on board, so now the search begins for beans that roast evenly. :Originally posted by 7844594248495E4B43482C0 link=1260345064/11#11 date=1260698835Flash lighting always makes it difficult to diagnose over the internet.Originally posted by 3B070E1603620 link=1260345064/8#8 date=1260607195The flash makes some of the beans look lighter than what they are, on the overall roast colour was quite consistent.
There does though appear to be quite a few lighter beans.
A close up look shows some beans with tipping and possibly some getting towards burnt in patches as Mal has suggested.
The tipping has never bothered me taste wise but I have tried to avoid it if possible when roasting.
It all comes down to practise.
Try find a bean thats less prone to uneven roasting and stick to that for a while.
Ive roasted over 60kgs of PNG Kimel.
Im not saying to do the same, but the more roasts you do on the one bean, the more youll learn about consistency in your roasting.
From there you can transfer what youve learned across to other beans.
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Re: First roast using data logger.
Flash lighting always makes it difficult to diagnose over the internet.Originally posted by 3B070E1603620 link=1260345064/8#8 date=1260607195The flash makes some of the beans look lighter than what they are, on the overall roast colour was quite consistent.
There does though appear to be quite a few lighter beans.
A close up look shows some beans with tipping and possibly some getting towards burnt in patches as Mal has suggested.
The tipping has never bothered me taste wise but I have tried to avoid it if possible when roasting.
It all comes down to practise.
Try find a bean thats less prone to uneven roasting and stick to that for a while.
Ive roasted over 60kgs of PNG Kimel.
Im not saying to do the same, but the more roasts you do on the one bean, the more youll learn about consistency in your roasting.
From there you can transfer what youve learned across to other beans.
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Re: First roast using data logger.
Thanks Mal,Originally posted by 604D494548240 link=1260345064/9#9 date=1260692921Gday Jon,
Overall, I would say the roast is a little light with the unevenness not at all unusual for beans from this region. Some beans actually appear to be slightly burnt but that may be down to the lighting, etc....
Even tough you may not enjoy brews made with them at the moment, keep trying them every day to take note of how the flavour develops. Given the lightness of the roast, you may have to consider brewing with other than an espresso machine.... To that end, try using a pour-over, filter, syphon, or other manual method that takes advantage of the varietal flavours that will come to the fore. Definitely worth doing.
With your next roast batch, try to see if you can replicate the profile listed by Warren above. Something akin to that will be more suited to espresso brewing I believe. I guess the most difficult thing to gain control of with Corretto roasting, is the heat input. Youve got to try and find the balance that allows adequate control over the roast profile but avoids burning the edges of the beans (called tipping) as this will contribute an exaggerated ashiness to the flavour of the brew, far in excess of the proportion of the beans that actually display tipping. Earthiness is not a bad trait though and one that is to be expected from most Mandheling beans; an over-riding earthiness will be down to the lightness of the roast and will dissipate the longer the beans are rested.
Thats probably enough to be going on with mate so hope some of this is helpful...
All the best,
Mal.
Appreciate your thoughts, certainly plenty to think about there.
Cant say I like the earthy flavour so perhaps the Mandheling beans are one for me to avoid in the future.
Have been contemplating resurrecting the siphon, perhaps now would be a good time, just might learn something.
Cheers,
Jon.
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Re: First roast using data logger.
Gday Jon,
Overall, I would say the roast is a little light with the unevenness not at all unusual for beans from this region. Some beans actually appear to be slightly burnt but that may be down to the lighting, etc....
Even tough you may not enjoy brews made with them at the moment, keep trying them every day to take note of how the flavour develops. Given the lightness of the roast, you may have to consider brewing with other than an espresso machine.... To that end, try using a pour-over, filter, syphon, or other manual method that takes advantage of the varietal flavours that will come to the fore. Definitely worth doing.
With your next roast batch, try to see if you can replicate the profile listed by Warren above. Something akin to that will be more suited to espresso brewing I believe. I guess the most difficult thing to gain control of with Corretto roasting, is the heat input. Youve got to try and find the balance that allows adequate control over the roast profile but avoids burning the edges of the beans (called tipping) as this will contribute an exaggerated ashiness to the flavour of the brew, far in excess of the proportion of the beans that actually display tipping. Earthiness is not a bad trait though and one that is to be expected from most Mandheling beans; an over-riding earthiness will be down to the lightness of the roast and will dissipate the longer the beans are rested.
Thats probably enough to be going on with mate so hope some of this is helpful...
All the best,
Mal.
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Re: First roast using data logger.
OK this is the end result, 500 grams of Sumatra Panjang Mandheling.
The flash makes some of the beans look lighter than what they are, on the overall roast colour was quite consistent.
At the time of posting the pic had not tried this batch, have since done so and am not exactly over the moon about it, reckon I stopped too early, its quite light and has an earthy taste! I suspect taking it to second crack would have improved it out of sight.
This was the last of the bag, as I recall previous darker roasts have been much better, sadly I made no notes so am really only guessing, wont make the same mistake again.

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Re: First roast using data logger.
Will put it on todays list of things to do Mal.Originally posted by 6A47434F422E0 link=1260345064/6#6 date=1260543055Some photos of the completed roast would probably be helpful too John....
Mal.
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