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Thread: Results from first roasting attempts

  1. #1
    Junior Member
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    Oct 2004
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    Results from first roasting attempts

    Gene Cafe Coffee Roaster $850 - Free Beans Free Freight
    Hi Everybody,

    All this is very new to me and I received my first order of Kenya AA and Brazil Cerrado only a few month ago. In the same time, bought an Ozito HG.

    Now I need some help :) . I have been roasting a couple of batches (by 250grm) of each and the results have been very inconsistent. The setting is a stainless steel colander in a wok, HG is set on highest temp. Cooling is with a hair dryer. I have a Silvia and a manual grinder.

    Brazil: Reach first crack OK after ~10 min. It is not a rolling drum type of noise, but rather some isolated crackling for 1 min or so. I tried to stop around 2 min after 1st crack, so I suppose I did not reach 2nd crack. Color is very uniform, compared to some Mocopan beans I had at the time, I would say medium. The beans are very dry, no signs of oil at all. The brew seems ok, lots of crema, good extraction timing, but the taste is heavy and quite bitter. I am still looking for the sweetness other have described.

    Kenya AA: This one seems to take more time to roast. Same thing: 2 min after 1st crack, so before 2nd crack I suppose. Medium roast, no trace of oil on the beans. The beans are quite difficult to grind, as if not dried enough. The brew is very quick, producing lots of crema with bigger bubbles. I have tried to play with grind fineness and tamping force, but no spectacular change. The taste is very acidic, a bit grassy. Where is the fruitiness?

    Anybody have some advice on what to try next to get this roasting better ??? ? Any clues to look for to know when to stop the roast?

    Thanks,
    Laurent


  2. #2
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    Join Date
    Aug 2004
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    2,312

    Re: Results from first roasting attempts

    You are not proceeding far enough, the flavours you are experiencing are typical of "lightly roasted" coffee.

    Generally speaking, you need to see atleast a nice "cinnamon" colour or your coffee will still have the woody flavours of the raw coffee seeds. These flavours also contain quite a deal of natural acidity. The more or darker you roast the coffee, the more of the acidity and woody flavours are cooked off, the coffee smooths out (loses wood & acidity) and develops complex characters, and the more you proceed after that, the more of a tangy, smokey flavour you pick up as the coffee turns to charcoal, and the more complexity you lose.....generally speaking.

    There are a few variables you need to control such as the size of the batch, the strength of the heat, and the distance of the heat source from the beans, and the speed of agitation of the beans while roasting. Playing around with these will produce differing results. Roasting too slowly "cooks" the beans and loses a lot of flavour, and roasting too quickly burns the coffee and or scalds the outside of the beans...

    So, the rest is up to you, with further advice from those that have experience in roasting the same way you are doing it.

    Regardez,
    FC.

  3. #3
    Senior Member
    Join Date
    Jun 2004
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    283

    Re: Results from first roasting attempts

    I think pretty much everyone says "burn the first batch". Id recommend taking a batch all the way, well past 2nd crack, and seeing how long it actually takes to get to the stage where theres smoke galore and oil becoming very evident on the surface of the bean as youre roasting (my beans only start to show traces of oil on the odd bean after a day or two). Work back from there!
    You should also note that if you only want to stop before 2nd crack, then you can continue roasting until you hear the very first beans reaching 2nd crack, and then cool them quickly - the bulk of the beans wont have reached 2nd crack yet.

    good luck!

  4. #4
    Junior Member
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    Oct 2004
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    18

    Re: Results from first roasting attempts

    Thanks all for your advices. Ill resolve to sacrifice a batch this week-end and see what happen.

    Cheers,
    Laurent

  5. #5
    Senior Member
    Join Date
    Jun 2004
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    283

    Re: Results from first roasting attempts

    And while I was very busy in Dec and never got around to inviting you over, I may have a chance to do so in January. If youre still interested, or anyone in Sydney for that matter, let me know and perhaps we can have a "Sydney Snobs get together". MDub can come over and show us his newly found HG rosting skills (or sacrifice his first lot of beans, depending if he managed to try a roast Monday) and you two can compare notes - Id offer to do a BBQ roast, but theres not much to see and not much input required ;)

  6. #6
    Junior Member
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    Oct 2004
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    18

    Re: Results from first roasting attempts

    Hi Brett,

    I am always ready to see how others are doing. It would be great if more people want to come. Tell me when then.

    Cheers,
    Laurent

  7. #7
    admin
    Guest

    Re: Results from first roasting attempts

    Id go if we lived closer

    let us know how you get on with pictures etc.

    Cheers
    Rich

  8. #8
    Senior Member
    Join Date
    Jun 2004
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    283

    Re: Results from first roasting attempts

    Behmor Coffee Roaster
    Laurent, how did your "full roar" roast go?



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