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Sulawesi Torajah Kalosi - too acidic

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  • Sulawesi Torajah Kalosi - too acidic

    Hi all

    I have made a few roasts now of the Sulawesi Torajah Kalosi. Gene Cafe roaster and using Silvia/Rocky. The first few were under-roasted but the following were closer to the mark:

    2007.06.10 100 gm 240 C for 20.0 mins:
    FC 12.0
    SC 18.5, rolling 19.0, end 20.0
    Roast level 11. Roast looks good.
    Tasting. A week later, beans slightly oily, very acidic and a bit woody taste.

    2007.07.08 200 gm 240 C for 19.0 mins:
    FC at 13.5, distict pops. Rolling at 15.0
    SC at 19.0, ended several seconds in.
    Roast level 11, roast looks fine.
    Tasting: 11 July. Zilch aroma. As an espresso, very acidic. Went to finer grind to get less volume, still acidic.
    Tried shorter pour of 20 secs to get less acidity, still too acid.
    Aroma of beans is very little compared to an Ethiopian Sidamo done on same day.

    So my Sulawesi is too acid. Im need some advice on where to go from here. What parameters to vary and in what direction. A shame that technology still wont let me email or post a smell and taste sample.





  • #2
    Re: Sulawesi Torajah Kalosi - too acidic

    I just checked my log and it seems similar. I took mine just to rolling second crack or 45 seconds after first snaps. The aroma when grinding if I remeber was kind of like apple and pear. by acidic do you mean that all your getting is fruit flavours because thats all I got too but I liked it. I remember getting a marked difference with a bit more rest. the apple/pear developed after 10 days to more like a glazed cherry.

    I found that this bean is quite finiky with brew parameters. pulling the shots tighter and hotter eliminated the woody/grassiness. try brewing closer to the top of silvias temp cycle.

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    • #3
      Re: Sulawesi Torajah Kalosi - too acidic

      Okies

      Im using a PIDd Silvia set at 109C which is the default that the PID is set at. Its been fine so I havent ckanged it yet. (a thermocouple in the group head shows aboy 92 to 96 C).

      By acidic yes I think I mean that. Im being imprecise as I may be wrong. The shots are definately not bitter but taste like one gets when you over extract. (I think). I certainly dont get identifiable fruit flavours.


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      • #4
        Re: Sulawesi Torajah Kalosi - too acidic

        I found it too acidic by itself. I could drink it after 5 days, but still didnt like it much by itself.

        Someone else tried blending it with Peru Segunda. So I tried that and liked it much better. I think I did 50/50.

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        • #5
          Re: Sulawesi Torajah Kalosi - too acidic

          From experience, Ive found it to be similar to a blood orange rolled in dirt.

          You might be experiencing strong earthy notes. Forget it for a week and see if it mellows a bit.

          A lighter roast will also remove some of the earthiness. Try aiming around CS9-CS10.

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