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Thread: What about using a Convection Microwave oven?

  1. #1
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    What about using a Convection Microwave oven?

    Gene Cafe Coffee Roaster $850 - Free Beans Free Freight
    I did a search and couldnt find any threads of people using a convection microwave.

    It has heat swirling around, and the turntable can swirl around the coffee. To me it look like the perfect machine to roast coffee.

    I got my CMO from Aldi for something around $160

    What are peoples thoughts on this?

  2. #2
    Senior Member fatboy_1999's Avatar
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    Re: What about using a Convection Microwave oven?

    My personal thoughts - You will have a fire in the CMO.

    How do you plan to agitate the beans to allow even heat?
    Where is the chaff going?
    Where does the smoke go?

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    Re: What about using a Convection Microwave oven?

    Quote Originally Posted by 545346505D4B6D030B0B0B320 link=1244291786/1#1 date=1244292070
    My personal thoughts - You will have a fire in the CMO.
    Quite possibly.

    How do you plan to agitate the beans to allow even heat? Attach one to the turntable shaft. Also mine has a lot of fan forced heat.
    Where is the chaff going? Fair question. Not sure
    Where does the smoke go? Where does it go in normal cooking??

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    Senior Member Koffee_Kosmo's Avatar
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    Re: What about using a Convection Microwave oven?

    How much heat will the inside plastic casing take?
    Will the inside casing melt @ 220 + deg Celsius
    Will it reach 220 deg Celsius
    KK

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    Re: What about using a Convection Microwave oven?

    Quote Originally Posted by 50747D7D7E7E4450746876741B0 link=1244291786/3#3 date=1244299317
    How much heat will the inside plastic casing take?
    Will the inside casing melt @ 220 + deg Celsius
    Will it reach 220 deg Celsius
    KK
    Umm, they is no plastic KK. *Its a Convectional Microwave oven.

    Someone in 2004 was going to release something called the WaveRoast, but it never got off the ground.

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    Senior Member Koffee_Kosmo's Avatar
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    Re: What about using a Convection Microwave oven?

    Well I say give it a go and see how it pans out
    As long as you have ample heat available on a domestic model
    If not a commercial model may be required

    KK

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    Senior Member fatboy_1999's Avatar
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    Re: What about using a Convection Microwave oven?

    Quote Originally Posted by 5176727D5E7C7D78766A130 link=1244291786/2#2 date=1244294793
    Where does the smoke go? Where does it go in normal cooking??
    Normal cooking doesnt produce quite the level of smoke that roasting beans does.
    Where does smoke go when things burn? It billows out of the oven and shrouds the kitchen in a haze, that is what is more likely with roasting beans inside and in an oven (with or without fire).

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    Re: What about using a Convection Microwave oven?

    It billows out of the oven and shrouds the kitchen in a haze, that is what is more likely with roasting beans inside and in an oven (with or without fire).
    Thats when I might use an extraction fan and some of that corrugated metal hosing to suck out the smoke. * Hmm not sure.


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    Re: What about using a Convection Microwave oven?

    I wouldnt do it.

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    Senior Member redzone121's Avatar
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    Re: What about using a Convection Microwave oven?

    Quote Originally Posted by 3F382D3B36200668606060590 link=1244291786/6#6 date=1244363634
    It billows out of the oven and shrouds the kitchen in a haze, that is what is more likely with roasting beans inside and in an oven (with or without fire).
    ;D ;D

    Quote Originally Posted by 0D312C373D3C2B3E363D590 link=1244291786/8#8 date=1244893361
    I wouldnt do it.
    Ditto

    And more importantly, would it be drinkable :-/

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    Re: What about using a Convection Microwave oven?

    TG:
    Thanks for your input.

    Redzone:
    Why wouldnt it be drinkable then? Controlled Heat, agitation and green beans is all that is required.

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    Senior Member speleomike's Avatar
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    Re: What about using a Convection Microwave oven?

    Hi

    Another problem is that microwaves rely on the water content of the food - its the water that absorbs the microwaves. Sure coffee beans contain some water but not much, and anyhow after 1st crack (if it can even get to first crack without baking) when it all comes out there wont be much left to continue the cooking.

    Anyhow Id say try it. Its a way of learning. The beans might taste terrible (I bet they will be baked and taste green), people here might say "I told you so" but its important to try new ideas and see what gives. Have a fire extinguisher handy too.

    Mike

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    Re: What about using a Convection Microwave oven?

    Quote Originally Posted by 4447525B52585A5E5C52370 link=1244291786/11#11 date=1244956427
    Another problem is that microwaves rely on the water content of the food - its the water that absorbs the microwaves.
    Mike, you havent read the first post correctly. Its a convection microwave. It has lots of real heat, and even has a grill too.

    Another issue with it, is I dont think the drive would be strong enough to allow an agitator to drag through the beans. Was thinking of a stationary agitator as the turntable moves a dish around.

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    Senior Member speleomike's Avatar
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    Re: What about using a Convection Microwave oven?

    Hi

    Oh well I learn something every day. Well if it has air flowing and a grill he should just "go for it" and roast some coffee. Yes he could glue an agitator to the side or roof of the microwave to sir the beans as they revolved in a dish. The agitator would need to be microwave safe plastic.

    Mike

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    Senior Member fatboy_1999's Avatar
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    Re: What about using a Convection Microwave oven?

    Quote Originally Posted by 7370656C656F6D696B65000 link=1244291786/13#13 date=1245053317
    Hi

    Oh well I learn something every day. Well if it has air flowing and a grill he should just "go for it" and roast some coffee. Yes he could glue an agitator to the side or roof of the microwave to sir the beans as they revolved in a dish. The agitator would need to be microwave safe plastic.

    Mike
    I re-iterate that I think its a bad idea.
    The agitator would not so much need to be microwave safe as not melt when the bean mass hits 250+ degrees celcius. So, plastic is a bad idea.
    Roasting coffee in a confined space with no extraction for the chaff and smoke is a bad idea.
    Roasting coffee inside in any sort of regular oven is a bad idea.

    All in all, in case youre wondering, I think its a bad idea.
    ;-)
    Brett.

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    Re: What about using a Convection Microwave oven?

    I agree with Brett....

    Mal.

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    Sleep is overrated Thundergod's Avatar
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    Re: What about using a Convection Microwave oven?

    Behmor Coffee Roaster
    Quote Originally Posted by 4661656A496B6A6F617D040 link=1244291786/10#10 date=1244950322
    TG:
    Thanks for your input.
    Youre welcome.

    In case you might have been wondering, I own a convection microwave oven.

    Have you given thought to whether or not the agitation might not be fast enough?
    That seems to be a problem with BBQ roasters.



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