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Slowing down popper roast

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  • #16
    Re: Slowing down popper roast

    if you look at that pic of TGs drilled holes you can see the "normal" slotted air vents on the bottom of the popper
    reply #31 is the PIC you want to look at
    http://coffeesnobs.com.au/YaBB.pl?num=1155880692/0

    i took the bottom of my popper and using i Stanley knife cut the slots out, to make them fully open not "half covered" as per original manufacturing

    this massivly increassed airflow to the bottom of the popper an increased roast time

    i have only done a few roast, but i reckon increasing the airflow t the bottom of the popper is a good move,

    also see my pics, i removed the top as well, imo it lowers the "thermal mass" of the popper and allows cool air to "cool the roast" slowing the heat build up
    http://coffeesnobs.com.au/YaBB.pl?num=1247783496

    sorry i did not take a pic of the slots.....

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    • #17
      Re: Slowing down popper roast

      Thanks TG,

      I didnt find the first link I cant explain (it was me) until you wrote:

      Originally posted by 764A574C464750454D46220 link=1250472907/14#14 date=1250750539
      Lindsay the only pictures are in the first link I posted.

      They show the first set of holes I drilled.

      Eventually I decided removing the whole bottom vent was less obstuctive to input airflow.
      I started with the kids popper which worked for my early roasts (5-7) but didnt mod it as it worked well enough and the kids were still using it for corn. So quickly set up a corretto, which has been great, but wish to re-evaluate the popper and improve it as a coffee roaster as I have acquired 2 units (B+D, Breville).
      Pulled the B+D apart to see what makes it tick and found what a wonderfully effective piece of very low cost engineering it is.

      But for coffee roasting (surprise, surprise) I think it could be improved, sounds like fun dont it, hope I don’t get electrocuted, as Im cute enough for my purposes.

      Kind Regards
      Lindsay

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