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Pre Blend roast disaster - lesson learnt

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  • Pre Blend roast disaster - lesson learnt


    The other day I did a pre blend roast of

    Indonesian Arabica Lington 158g
    Brazil Daterra RFA 158g
    Mexican Chulita HG 158g
    Nicaraguan SHG Parma 158g

    This blend has worked well in the past when roasted separately.

    However I have since learnt that this blend is not to be roasted altogether as a pre blend.

    It has a slightly grassy taste which doesnt bode well in the cup at all
    and it does not leave a nice taste in the mouth at all.

    During second crack I noticed along with the soft cracklings there were some loud cracks, very much like the sound of a first crack.

    As I was in the middle of a 5 night run of nightshifts at the time of doing the roast and 1/2 asleep it never really clicked at the time. As a result of this there are beans in the mix which are only light brown.

    Im pretty certain that the Nicaraguan SHG Parma (strictly high grown) bean is the culprit and needed longer (hence just reaching FC while the rest was in rolling 2nd), but I could be wrong.

    It could be the Mexican but Ive used those before in a preblend and they have been fine.

    Anyway, lesson learnt. I rushed out to a non CS sponsor local roaster (name left out for legal CS reasons) and purchased store roasted beans for the first time in ages

    This blend will have to go to the worms on the compost heap

    Such is life :-[

    Anyone have any other ideas which beans were the culprit, if not the Nicaraguan?


    Belinda

  • #2
    Re: Pre Blend roast disaster - lesson learnt

    Im not familiar with the other beans but the Nicaraguan beans Ive done here require more heat between 1st and 2nd crack than just about any others so its a very likely culprit.


    Java "Love that Nic flavor!" phile
    Toys! I must have new toys!!!

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    • #3
      Re: Pre Blend roast disaster - lesson learnt

      Interesting weight selection............... :-/

      Comment


      • #4
        Re: Pre Blend roast disaster - lesson learnt

        Originally posted by Thundergod link=1167872944/0#2 date=1167877154
        Interesting weight selection............... :-/
        I was basing it on the small amount of Mexican I had left ..... actually.

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        • #5
          Re: Pre Blend roast disaster - lesson learnt

          Hi Belinda
          Regarding your blend, you have to separate the indonesian coffee.
          Coffee roasting goes well by family. Example, you can roast the Central and South American together.
          But the Indonesian is only a cousin, so you have to roast it separately.
          In my opinion your blend is not  very leafy. I suggest to add a Colombian and PNG organic A.

                                    30% Colombian
                                    15% PNG Organic A (Roast well with Americans)
                                    15% BRAZIL
                                    20% Mexican
                                    10% Indonesian
                              &    15% Nicaraguan
          If you dont have the PNG, just replace it by an other coffee of your chose. ;D
          Cheers,

          Serge

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          • #6
            Re: Pre Blend roast disaster - lesson learnt


            Thanks for that Serge. Shall maybe try a blend like that next time. Although roasted separately my original blend above did work quite well. But everything can be improved upon. 8-)

            Belinda

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            • #7
              Re: Pre Blend roast disaster - lesson learnt


              Originally posted by Go Barista link=1167872944/0#4 date=1167913356
              15% PNG Organic A (Roast well with Americans)
              Does this mean you should put an American in the roaster and take it to rolling 2nd?


              Belinda



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              • #8
                Re: Pre Blend roast disaster - lesson learnt

                Belinda

                I new you will said that!!!

                Hemm! We have to ask our friend Javaphile :

                Serge

                Comment


                • #9
                  Re: Pre Blend roast disaster - lesson learnt

                  Originally posted by Corretto link=1167872944/0#6 date=1167956598
                  Does this mean you should put an American in the roaster and take it to rolling 2nd?


                  Belinda

                  Originally posted by Go Barista link=1167872944/0#7 date=1167976140
                  Belinda

                  I new you will said that!!!

                  Hemm! We have to ask our friend Javaphile :

                  Serge

                  Sure why not! Americans like going for a good roll as much as anyone! Even more so when they can get a good 2nd crack rolling!! ;D


                  Java "You just had to know didnt you?!" phile
                  Toys! I must have new toys!!!

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