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Thread: Would this work well? A heat gun + mixing bowl?

  1. #1
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    Would this work well? A heat gun + mixing bowl?

    Gene Cafe Coffee Roaster $850 - Free Beans Free Freight
    Hi
    This is my first post...love this site, so much info.
    I have recently bought a popcorn popper roaster and should be getting my green beans from coffee snobs any day, but I had a thought...

    Would a heat gun pointed into a mixing bowl, being rotated electriclly by the mixer (like a kenwood dough mixer or kitchen aid etc) with dough agitating attachments moving the coffee, actully roast the coffee well?

    I havet tried this yet, but I thought maybe someone eles has and has maybe had results?

  2. #2
    Senior Member Koffee_Kosmo's Avatar
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    Re: Would this work well? A heat gun + mixing bowl

    It should work provided that
    The mixer does not turn to fast
    The mixer is not made of plastic or it will melt
    Make sure the bowl has a handle
    However
    I donít think the piggy tail curly dough agitators will work

    I suppose you could try and source a 1950s style made of cast alloy at a second hand shop and give it a go

    Others may have already given it a go in the past and found that the Bread Maker / Heat Gun to be a better combo

    KK

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    Re: Would this work well? A heat gun + mixing bowl

    jatzntan,

    welcome to cs.

    Yup that should work keeping in mind KKs comments, you may even need to modify the mixer blades for optimum results.

    Somebody here posted something similar a year or so ago and IIRC it seemed to work.

    Another cosideration is the distance of the HG from the bean mass.
    In a corretto, this is typically 7-10cm, given the mixer bowl opening, may be a little wider than a BM bowl, there may be a tad more heat loss to consider.
    Before you go full steam ahead, you need to check that there is room for the HG nozzle between the mixer blades and the side of the bowl.

    Once the roast is completed it is quite critical to cool the beans as quickly as possible, so whatever contraption you come up with, it should allow for a pretty quick bean dump.


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    Mal Dimal's Avatar
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    Re: Would this work well? A heat gun + mixing bowl

    What the guys above said, and......

    Bearing in mind that most mixers are not designed to accommodate high temperatures, you would probably have to fit some heat shielding/insulation to mixer components that will react badly to higher than normal temps; such as the gearbox and turntable area, and maybe the upright section too if there is a possibility that hot air will contact this area....

    Mal.

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    Re: Would this work well? A heat gun + mixing bowl

    I would be really careful about the reflected heat up into the mixer.

    Think you are adding significant heat to a machine that was never intended to have significant heat added to it = recipe for disaster.

    I melted the surround of a heat gun nozzle and it was a lot further away than the mixer is from the mixing bowl.

  6. #6
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    Re: Would this work well? A heat gun + mixing bowl

    Thanks everyone for your thoughts. I didnt think of the effect the heat would have on the mixer but its a very valid point. There are rubber parts on the mixer which I believe may not survive the intense heat

    Ill stick with the popcorn roaster for now and experiment with that

    thanks again

  7. #7
    Senior Member Koffee_Kosmo's Avatar
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    Re: Would this work well? A heat gun + mixing bowl

    Quote Originally Posted by Mal link=1216960785/0#3 date=1216973127
    What the guys above said, and......

    Bearing in mind that most mixers are not designed to accommodate high temperatures, you would probably have to fit some heat shielding/insulation to mixer components that will react badly to higher than normal temps; such as the gearbox and turntable area, and maybe the upright section too if there is a possibility that hot air will contact this area....

    Mal.
    Yea Mal
    Good thought?
    Especially the gearbox as those gears may be made of not so heat resistant plastic

    KK


  8. #8
    sdg
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    Re: Would this work well? A heat gun + mixing bowl

    Hi Jatz,

    you could always try the good ol heat gun + steel bowl + wooden spoon technique -- we did this before I finally scored a BM and it can work pretty well -- can be quite hard to manage all the things youll end up needing to hang on to tho -- the bowl, the spoon, the heat gun, the thermocouple :P

    Get all that lot sorted and youll be most of your way to a Corretto ;)

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    Re: Would this work well? A heat gun + mixing bowl

    I agree with Simone ... try the old heatgun and wooden spoon first, with a mixing bowl. Its easy to rig the heatgun to a stand to give you just two things to hold onto ... though for two years I did it all by holding heatgun with one hand, spoon with the other and having the bowl against my well-padded knees ...
    Thatll do you till you can assemble the bits you need for a corretto ... Ive done two roasts now and would never go back to the mixing-bowl. Look for a total price of around $80 for a corretto including second-hand bread machine and heatgun -- youll never look back!

  10. #10
    Senior Member julsajet's Avatar
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    Re: Would this work well? A heat gun + mixing bowl

    yeah, my saucepan / heatgun / whisk combo worked really well. The saucepan didnt move much so I didnt have to hold it - just held the heatgun and whisked like mad.

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    Re: Would this work well? A heat gun + mixing bowl

    Behmor Coffee Roaster
    Hi Jatzntan,
    I remember a snob from here in Brissie doing this with some success.His CS moniker is Segrave.I did a search but couldnt find anything so perhaps if you PMD him he may be able to help.
    I think he had an industrial strength mixer.
    But wait I found his post http://coffeesnobs.com.au/YaBB.pl?num=1177421859
    Hope this helps.

    Ken.



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