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Thread: Whats in my coffee roaster this week

  1. #2001
    Senior Member topshot's Avatar
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    A real lucky dip this week!

    I decided to use the remains of some almost empty bags I had left over;

    Ethiopian Gambella Naturals.
    Java Blawan Estate WP1
    Kenya Kagunyu AA
    Indian Monsoon Malabar AA

    I have no idea how old some were.
    They all added up to 625 grams, so I ended up with a little over 500 gm of roasted.
    Smelled really good at the end of the roast.

    Don't ask me the ratios, there was more of some less of others.

    It could either be horrible or a good blend, who knows, I'll find out in 5 or so days.

    I'm looking forward to trying some espresso's and ristretto's to test the final result, if it doesn't taste so good, then it will be mixed with milk.
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  2. #2002
    Senior Member Yelta's Avatar
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    Quote Originally Posted by topshot View Post
    A real lucky dip this week!

    I decided to use the remains of some almost empty bags I had left over;

    Ethiopian Gambella Naturals.
    Java Blawan Estate WP1
    Kenya Kagunyu AA
    Indian Monsoon Malabar AA

    I have no idea how old some were.
    They all added up to 625 grams, so I ended up with a little over 500 gm of roasted.
    Smelled really good at the end of the roast.

    Don't ask me the ratios, there was more of some less of others.

    It could either be horrible or a good blend, who knows, I'll find out in 5 or so days.

    I'm looking forward to trying some espresso's and ristretto's to test the final result, if it doesn't taste so good, then it will be mixed with milk.
    Morning Topshot, I think most of us do something similar when we get an accumulation of bag ends, surprisingly the roasts usually turn out pretty well.

    Sounds like a pretty good mix you have, will be interesting to hear how it is in the cup.

  3. #2003
    Senior Member topshot's Avatar
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    Quote Originally Posted by Yelta View Post
    Morning Topshot, I think most of us do something similar when we get an accumulation of bag ends, surprisingly the roasts usually turn out pretty well.

    Sounds like a pretty good mix you have, will be interesting to hear how it is in the cup.
    Hi Yelta,

    It's not the first time I've mixed the "dregs of whats left" most have been really good, with one exceptional one (I wish I knew what was in that blend)!

    I don't normally roast blends, most of the time I roast single origins to explore the tastes of "the world".

    I'll let you know what the end result is.
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  4. #2004
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    This week: PNG Wahgi AA - v.nice, mildest tasting coffee I've ever had, perfect for my "please make it even weaker" friends. Kenya AA, a staple, although it's not as good lately I think. Yirgacheffe, always good. Harar longberry, not quite as good but still way up there. Indian Elephant Hills, a top notch bean, alone or improve pretty much any other bean, my favourite for the month. China Dai Muang Lem, every time I make a coffee from this my wife says "extraordinary", surprisingly good. Nimbin Mountain top special reserve, pretty good, nice looking bean too. Nimbin Mountain top peaberry, not as good. Myanmar Maymyo, a good blender. OK I just got the Behmor so I went a bit over the top...

  5. #2005
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    It... has... been... too... LONG! My first roast in long time! Reflux stuff just doesn't seem to be coffee related (hooray!) so did a quick roast for filter of a Colombia Red Bourbon Honey Las Margaritas La Esperanza (honey processed).

    I also FINALLY got the updated control panel for my Behmor (which took me quiiite a while to fit on, as the screws holding on the top cover were all distorted so I had to leave the top cover on and maneuver the panel in the side) so am looking forward to exploring it, just did this one on 400P1A, pushing P3 (50%) and D (double drum speed) when first crack started, and roasting 350 grams. Although very strangely first crack didn't occur until 15 minutes... that's not normal usually...

    It's possible because it was quite cold outside this morning and I also didn't do any preheat like usual so that's possibly the culprit... I would have thought P1 would have zipped it fast..

    Perhaps lower the weight of beans for next time do you guys reckon?

    But I have missed roasting very much. Something so nice about it, being outside and it being a really relaxing process
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  6. #2006
    Mal Dimal's Avatar
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    Lookin' good though Simon...

    I have an Hiatic Hernia (genetic) and have to be particularly careful about what goes past my teeth - Several foods mainly but coffee has never been a culprit.

    Mal.
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  7. #2007
    Senior Member simonsk8r's Avatar
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    Quote Originally Posted by Dimal View Post
    Lookin' good though Simon...

    I have an Hiatic Hernia (genetic) and have to be particularly careful about what goes past my teeth - Several foods mainly but coffee has never been a culprit.

    Mal.
    Ah youch... but AWESOME that coffee isn't a no-no
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  8. #2008
    Senior Member topshot's Avatar
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    Quote Originally Posted by Yelta View Post
    Morning Topshot, I think most of us do something similar when we get an accumulation of bag ends, surprisingly the roasts usually turn out pretty well.

    Sounds like a pretty good mix you have, will be interesting to hear how it is in the cup.
    Hi Yelta,

    The "blend" is great, I don't know what it's like with milk, but I have been enjoying some great espressos the last 4 days!
    The one I'm drinking now has some great flavours through it and it's uncannily sweet!
    It's a real crema monster though, could be the Monsoon Malabar in the blend!

    I should have taken notice of the percentages I threw together!
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  9. #2009
    Senior Member Yelta's Avatar
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    Quote Originally Posted by topshot View Post
    Hi Yelta,

    The "blend" is great, I don't know what it's like with milk, but I have been enjoying some great espressos the last 4 days!
    The one I'm drinking now has some great flavours through it and it's uncannily sweet!
    It's a real crema monster though, could be the Monsoon Malabar in the blend!

    I should have taken notice of the percentages I threw together!
    Pleased to hear it worked out well.

  10. #2010
    Mal Dimal's Avatar
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    Ethiopia "End Of Bag Mix" with Indonesia Sumatra 'C'...

    Haven't roasted for a while (been a bit too crook unfortunately) but back at again now...

    Thought I would clean out a batch of nearly empty bags of Ethiopian varieties and couple that with some of Andy's excellent Indonesian Sumatra 'C'.

    Was a bit cold outside this morning (13.0C) and from previous efforts with ambient conditions like this, I needed to push the batch through faster than I normally would in order to maintain control over the profile. Also had to take into account the 'shift' in the reported temperature coming from the t/c-DMM combo. Temp's were being reported about 4.0C lower than in warm weather in relation to the start of 1st-Crack.

    The batch turned out pretty decently I think and the aromas coming off the cooler were mouth-wateringly enticing. Looking forward to the first brew...

    Blend Details...
    Ethiopia "End Of Bag Mix"... ~500g
    Indonesia Sumatra 'C'... ~250g
    Roasted Weight... 638g
    Moisture Loss... 14.93%

    Copy of Profile and post-roast photos attached below...

    Mal.

  11. #2011
    Senior Member Yelta's Avatar
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    Quote Originally Posted by Dimal View Post
    Haven't roasted for a while (been a bit too crook unfortunately) but back at again now...
    Glad to hear your on the mend Mal, this roast sounds like a good one.

    Moisture loss 14.93%! quite a bit lighter than for espresso, obviously roasted to suit the Brazen.
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  12. #2012
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    Quote Originally Posted by Dimal View Post
    Temp's were being reported about 4.0C lower than in warm weather in relation to the start of 1st-Crack
    Interesting, I've been seeing the same thing recently but I hadn't yet worked out why. Good to know it's not just me and the cold weather probably has something to do with it. First time it happened I noticed first crack was earlier than expected, then I didn't trust the readings so I had to use the trier for the first time in ages, I normally only rely on temps and it made me realise how reliant I am on them.
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  13. #2013
    Mal Dimal's Avatar
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    Quote Originally Posted by Yelta View Post
    Glad to hear your on the mend Mal, this roast sounds like a good one.

    Moisture loss 14.93%! quite a bit lighter than for espresso, obviously roasted to suit the Brazen.
    Thanks mate...

    Indeed Yelta. Gotta love the convenience and quality of the Brazen brews throughout the cooler days of the year. Going to give it a try tomorrow and can't wait...

    Mal.

  14. #2014
    Mal Dimal's Avatar
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    G'day Agra'...

    Yes mate, temperature gradient is a very important criterium to monitor. Always pays to keep on top of all the other criteria too, as you mention with using the trier.

    The reason for the disparity in temperature reporting between the warmer and cooler months is an error caused by the temperature compensation circuitry in the DMM for the Zero Junction of the potentiometer bridge used with t/couple temperature measurement. I understand that Andy's newer Heatsnob uses a more sophisticated design to counteract such discrepancies - Might be worth considering an upgrade to one of these for use with the Drum Roaster... Not a big issue for we casual home-roasters.

    Mal.
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  15. #2015
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    Quote Originally Posted by Dimal View Post
    is an error caused by the temperature compensation circuitry in the DMM for the Zero Junction of the potentiometer bridge used with t/couple temperature measurement
    Thanks, that's interesting to know. My current setup is with some cheap thermocouple interfaces to an arduino, I'm pretty sure there are better ones available, I'll have to do some research and check them out. I think it is most likely the same/similar issue you describe. I used to have a heatsnob when I had a behmor but it doesn't work with my current setup.

  16. #2016
    Mal Dimal's Avatar
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    Quote Originally Posted by Agrajag View Post
    I used to have a heatsnob when I had a behmor but it doesn't work with my current setup.
    Have you talked to Andy about the problems you experienced?
    Can't imagine them being insolvable...

    Mal.

  17. #2017
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    Quote Originally Posted by Dimal View Post
    Have you talked to Andy about the problems you experienced? Can't imagine them being insolvable...
    Not directly but there was a thread a while back about the problem, mainly to do with the fact that I'm using linux and the way the heatsnob interfaced with usb hid and java doesn't have any support for that. Also I've built some more functionality into my arduino so I can control fan/gas directly from artisan so it's become a bit of a bigger project now, it all works pretty well. I did another roast last night, and actually I think my problem may have been the other way around - my arduino was sitting quite close to my heat source and I found was getting a bit warm - I moved it away, and bam first crack was right on 196 again, even though it was 11 degree ambient. Problem solved I think!
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  18. #2018
    Mal Dimal's Avatar
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    Blend Details...
    Ethiopia "End Of Bag Mix"... ~500g
    Indonesia Sumatra 'C'... ~250g
    Roasted Weight... 638g
    Moisture Loss... 14.93%
    This has turned out to be a real beauty - Not surprising really with a bunch of excellent Ethiopians in there...
    Lots of berries, loads of dark cocoa and plenty of interesting soft spiciness.

    Gotta love these "surprise blends"...

    Mal.

  19. #2019
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    Behmor Coffee Roaster
    Haven't posted in a while.
    I'd reduced the charge temp with excellent results.
    Then i increased the batch size with poor results (too much chaff in the cooler meant the beans took 5 minutes to cool)
    last night i had the vacuum handy, and cleaned out the chaff collector before cooling, this had me back to cooling in around 2 minutes on a 220g (green) batch.
    Also on consultation (thanks Oldmate), i used a higher heat setting coming into turnaround. My preheat was to take it to 200c and then turn the heat off, waiting until it hit 148 and then apply moderate heat, loading the beans when the temperature reached 155c. Coming into turnaround, i applied a maximum heat setting (5.6 instead of my normal max of 4.8) which made a huge difference in getting the roast moving and had FC closer to 10 min after load. Wait to see how the beans taste:

    Yirg:
    20180716-220gYirg.jpgIMG_4153.jpg

    I've got a few thoughts on the profile, however i'll wait and see how they taste. The faster ramp resulted in a much stronger first crack, i accidentally turned the fan off instead of the heat after FC, corrected it after 30 seconds when smoke started coming out of the load chute.

    Also roasted Colombian Vulcan Galeras and Sulawesi Blue, both with a faster ramp. No photos sorry. Also forgot to weight for weight loss.
    20180716-220gSulawesi.jpg
    20180716-220gColombian.jpg
    Last edited by Janus; 7 Hours Ago at 10:17 AM.
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