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Thread: Sulawesi Torajah - Problem

  1. #1
    Senior Member Stan's Avatar
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    Sulawesi Torajah - Problem

    Gene Cafe Coffee Roaster $850 - Free Beans Free Freight
    Roasted some Torajah last week. 4 days post roast - one of the best SO coffees I have tried - rich choc after taste - full body with a viscus mouth feel everything you would want in a great coffee. Roasted to CS 10 FC at 15minutes 193deg C SC at 21 minutes at 210 deg C

    However today 8 days post roast the smell has changed to an acidic smell from the bag and the coffee tastes burnt/rancid. Any ideas what has gone wrong. Placed in a new one way valved bag and sealed. I am at a loss. :-/

    Any ideas on what went wrong would be appreciated.

  2. #2
    Senior Member greenman's Avatar
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    Re: Sulawesi Torajah - Problem

    Hi Stan, Ive done 3 Torajah roasts now, first crack at around 13min mark and rolling second 19-20min mark, some oil on beans CS10.
    I started the first batch at day 2 and it was amazing and got better each day until the bag was empty at day 7, the other two I blended with some Nicaraguan producing a lovely espresso and flat white.
    I dont know what would cause your result, if the bag was new it wouldnt be contamination....hopefully some more experienced roasters may have some answers.................cheers gm

  3. #3
    Senior Member Stan's Avatar
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    Re: Sulawesi Torajah - Problem

    I had a gleam of oil after the second day and they seem to improve until today. I am at a loss unless the odour from the beans has changed to a burnt acrid odour not at all what it was four days post roast. :-[

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    Mal Dimal's Avatar
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    Re: Sulawesi Torajah - Problem

    Hmmm....

    Dont usually take these beans as far as Rolling SC in the Corretto. Aim to have Rolling FC at around 10-11 minutes, slow things down and stretch it out towards SC but stop the roast at around CS-9 before the first snaps of SC are even heard. That usually ends up at around the 17-18 minute mark. Leave em to rest for 5-7 days and then get stuck in. Makes a truly beautiful cuppa with the Syphon and a very acceptable Flat White with the AeroPress. Theyre usually gone in a few days after opening the bag though, so have never struck the aromas you mention Stan.... :-?

    Cheers mate, :)
    Mal.

  5. #5
    Senior Member Stan's Avatar
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    Re: Sulawesi Torajah - Problem

    I think the flavour we have encountered was the acidic. *I have had a few cups since I did the post and I am finding it drinkable but the wife is not impressed. *Then again she is comparing it to the Gambella we had before it. *I think she has been spoilt. *;D

    The smell has not improved but the coffee is now quite drinkable (to me anyway). *when I roast it next time, I will not take it as far into the roast when I do it again. *I was by myself and had to many things to do before I could start cooling the beans down. *

    I roast 500gms a week at this stage as we only have two cups each during the week and catch up on weekends. Work always interferes with lifes pleasures. >:(

    Thanks for the advice Mal. *[smiley=thumbsup.gif]

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    Re: Sulawesi Torajah - Problem

    I just roasted some of this today - I was glad to see your comment mal, as I think I have done almost exactly as you said, so hopefully it will taste good. My previous lot I did too far, and they were pretty average. They also had a really short life. From memory I think it was about 4 or 5 days and then they got thrown. Is this a sign of an over-roasted bean when they dont last well?

  7. #7
    Senior Member Dennis's Avatar
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    Re: Sulawesi Torajah - Problem

    Personally, I prefer these beans several seconds into the first signs of second crack and the roast duration would be just over 19mins. *A fairly slow and steady pace seems to allow the beans to develop (swell) nicely and there is no sign of oils having migrated to the surface when they reach the cooling bin.

    I think the idea that beans dont last well when they are "over-roasted" or roasted too quickly is very true, particularly of beans that arent all that hard. *I suspect that some of the descriptions above are due to what I would term as violent changes in the cell structure, and rather than capture the oils within the cells, expels those oils to the surface all too rapidly and deteriorate rapidly too.

    All a bit like that idea of how to boil a frog - not that you would do it.

    Dont know if any of thats right - just my thoughts.

    EDIT: Oops - just realised that Id said I prefer these at first signs of FC when I meant second crack - have fixed my error.

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    Re: Sulawesi Torajah - Problem

    Hi Dennis, I think you are spot on with the violent changes comment with my roast at least. My roaster was going way too quick between 1st and 2nd previously. Ive managed to get that under control with some additional venting so hopefully this roast will come out good.

    Damian.

  9. #9
    Senior Member GregWormald's Avatar
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    Re: Sulawesi Torajah - Problem

    I roasted some of this in the Gene Cafe the other day, and like the Gambella it went very quickly from 1st to 2nd--even with quite a substantial heat reduction.
    I reckon less heat again next time--2nd seems to develop just past 1st.
    Greg
    ps-tastes OK though, but I think it could be improved.

  10. #10
    Senior Member Stan's Avatar
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    Re: Sulawesi Torajah - Problem

    Behmor Coffee Roaster
    As I said before I will shorten the roast time. I will probably pull it a little short of SC.

    Thanks :)



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