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Thread: Tempterature Problems

  1. #1
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    Tempterature Problems

    Gene Cafe Coffee Roaster $850 - Free Beans Free Freight
    HI. Ive been Corretto roasting for about 6 months now but have only been using the DMM since Christmas.

    Im finding that my first crack comes on about 178 degrees and then second crack at about 182 degrees. I was able to push first crack to 198 and then second crack at 202 with the help of a lid for the bread maker and a fan speed on the heat gun but this still isnt anywhere near the 200 & 221-5 which people talk about.

    Can someone please point me in the direction of a thread which will help me problem solve this issue.

    Thanks.

    Mike

  2. #2
    Senior Member greenman's Avatar
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    Re: Tempterature Problems

    Hi Mike, positioning of the heat probe has an affect on your temperature readings, is your probe sitting well into the bean mass in the bucket?? My Corretto had similar readouts initially but once I placed the probe lower and into the beans all was good :) :)

  3. #3
    Senior Member Philby1981's Avatar
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    Re: Tempterature Problems

    Also are you using the lead with the bead or the probe? I found the bead quite inaccurate and changed to the long probe. ;)

  4. #4
    Life-long Learner DesigningByCoffee's Avatar
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    Re: Tempterature Problems

    Hi Mike
    That lid seems to have given a more ballpark reading, probably by containing some of the circulating heat in the air (shown by the overall readings rising) but that result would also seem to say that the probe has been hanging out in the airflow so far. I agree with Greenman & reckon dropping that probe lower, right down to the bottom of the bean mass might fix the issue, as then only the bean temp not the wind chill factor will be impacting on the readings :-)
    So get out the cordless - hey, its never going to do another loaf again anyway!

    Let us know how you get on
    Matt


  5. #5
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    Re: Tempterature Problems

    Thanks for the thoughts guys.

    Ive already dropped the probe down as far as it can go.

    I think my issue if that i have quite a small bread tin and so the mixing tool reaches to the very edges as it rotates. This means that i can only get the probe in about 5 millimeters before it hits the probe which is not enough to really get a good reading on the bean mass.

  6. #6
    Senior Member coffeechris's Avatar
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    Re: Tempterature Problems

    I dont know if it is any help but if you are able to drill a hole through the side of the bread maker then through the container the beans sit in. When roasting i then place the probe through the hole, this seems to give me a good reading through out the roast.

    Good luck, persistences pays off..

    Chris :)

  7. #7
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    Re: Tempterature Problems

    Ok. So i think ive fixed the problem. I went to my local hardware and bought some washers which ive put under the mixing tool. This raises it up of the bottom of the pan which mean i can insert the temp probe further. Just did a roast and got much better temperature readings.

    Thanks everyone.
    :)

  8. #8
    Life-long Learner DesigningByCoffee's Avatar
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    Re: Tempterature Problems

    Behmor Coffee Roaster
    Quote Originally Posted by 2D292B252C292B2533232F26262525400 link=1326439029/6#6 date=1326505135
    Just did a roast and got much better temperature readings.
    Cool! What sort of first crack & second crack readings did you get?



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