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  • Microwave roasting

    So today for novelty value I thought "What would happen if I put some green beans in the microwave??" Of course I am on afternoon shift and the tide is too high to go swimming safely………read as I am bored on the rock this morning…..

    If anyone has experience with roasting coffee in a microwave or is aware of others that have experience I would be interested to know what the verdict was.

    Well for my experience I found out they roast, kinda..... :-/

    Maiden voyage.

    Power set at 80% for 5 minutes, stirred every minute or so.

    Outside appearance of the bean becomes like a light roast or even under roasted, but shiny with oil like they had been over roasted or dark roasted.

    The inside of the beans was basically black, burnt charcoal which would suggest; no lets say confirm, I did over roast them.

    Chaff and smoke came off as usual.

    If would also now appear that I have now stained the bottom of a white porcelain bowl with brown…that should make the missus happy…

    Second go.

    Power set at 30% for 5.5 minutes, again stirred every minute or so, stopped towards the end of what I think is the second crack.

    Not so much over roasted this time, but definitely unevenly roasted. It would appear that they would benefit from more constant regular agitation as per normal methods.



    This roasting thread may be a work in progress for the bored at heart……… :

  • #2
    Re: Microwave roasting

    It has been attempted a couple of times - apparently it can even be done with the use of popcorm microwave bags.

    I dont think the result would be great though!

    http://coffeesnobs.com.au/YaBB.pl?num=1181655309

    and I cant find the post on my attempt a year or so ago - needless to say it was pretty bad.

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    • #3
      Re: Microwave roasting

      You nearly burnt the house down no?

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      • #4
        Re: Microwave roasting

        Well I certainly set the smoke detectors off!

        And Mrs Grendels nag circuit was activated.

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        • #5
          Re: Microwave roasting

          Sounds like you are treading on dangerous ground there Grendel!!!!!
          I got banished to the garage with my roasting after the first batch in the popper, now I can make us much mess as I like out there .............

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          • #6
            Re: Microwave roasting

            I would have been surprised if I was the first to try this. Thanks for the link provided Grendal. I’ll stick with ruining crockery rather than using a plastic bowl then!!! I would have liked to see your thread Grendal, but couldn’t locate anything…? :-/

            My experiment yesterday reminded me of a younger me when jam donuts first came out for microwaves many moons ago.....I seem to recall making burnt rocks that smoked out the house....very reminiscent yesterday...... :

            Wife is away so I am free to have bicycle repairs in the lounge, cleaning of salt water from the fishing rods in the bath and experimental microwave coffee roasting in the house......Ssshhh…..

            Im thinking to make a simple agitator at this stage by making a frame/agitator from plastic that will use the walls of the microwave to stabilise it and goes into the container holding the beans and the turntable does the agitating for me while the agitator remains stationary. No lid likely, but I think the microwave should keep the ambient air temp good enough.

            Seems simple in theory, lets see how the practice is....

            From what I can see the unevenness of the roast is a major problem which may be somewhat fixed by agitation?? I’m a fool for persisting I know, and that a substantial improvement in the quality of the roast is unlikely, but we’ll see where this goes….

            Anyone for pictures if I get it going??

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