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Thread: Gene Cafe Cooling

  1. #1
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    Gene Cafe Cooling

    Gene Cafe Coffee Roaster $850 - Free Beans Free Freight
    No doubt its been done before by a CS, but I've found my compact blower useful for knocking a few minutes off the "in machine" cooling cycle. These things punch out a significant amount of air for a battery unit. 250g beans, roasted for 17 mins, cooling to 60c takes 7.5 minutes instead of 11-12 minutes.
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    Last edited by Tridoros; 4th March 2017 at 07:42 PM.
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  2. #2
    Mal Dimal's Avatar
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    G'day mate...

    Do you just play the blower nozzle over the rotating drum or direct it into an air intake on the GC?

    Mal.

  3. #3
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    Quote Originally Posted by Dimal View Post
    G'day mate...

    Do you just play the blower nozzle over the rotating drum or direct it into an air intake on the GC?

    Mal.
    Howdy - just over the drum as per jpg. With the blower button locked at lowest speed, the hot air flowing off the drum (and behind the Gene) is quite impressive in the first few minutes.
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  4. #4
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    Why do you want your beans to cool down faster Tridoros?

  5. #5
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    I'm not experienced enough in the art of good roasting to quantify this, but it does seem a way of reducing unwanted roasting time I would have thought? - and I'm not about to start dumping hot beans into some sort of Heath Robinson cooling contraption either like some aficionados do apparently.

  6. #6
    Mal Dimal's Avatar
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    Too right...

    You want to be able to stop the roast at precisely the ideal locus on the profile.
    The quicker the cooling method, the better and more efficiently you are able to do this...

    Mal.

  7. #7
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    But if the beans colour at the end is the same whether you cool it slowly or quickly how will it affect the taste Dimal? I'm still struggling to find an answer to this

  8. #8
    Senior Member greenman's Avatar
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    If you dont cool quickly enough the internal stored energy inside the beans will keep roasting them past the desired target. This may not be apparent on the external appearance of the beans.
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  9. #9
    Senior Member Barry O'Speedwagon's Avatar
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    When I used my Gene (should get it out again) I used to do the emergency stop then tip beans into large cast iron roasting pan, then point a pedestal fan at it. Worked pretty well.

  10. #10
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    Behmor Coffee Roaster
    I also use the emergency stop, tip the beans into a long handled sieve sitting on a metal veggie steamer, and point a fan at them. Once I have the drum safely back in the gene in cool down mode, I tip the beans from one sieve to another in front of the fan and they cool down faster than the drum itself . Doing it this way lets me do more than one roast within the hour, and doesn't risk uneven heat stresses on the glass of the drum. I'm wondering whether the fan pointed at the drum might risk that ?



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