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First roast, very quick

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  • First roast, very quick

    After asking about poppers I decided to get a mistral popper to try my first roast. I already had a cornelius but you cant stir the beans without breaking the lid off.

    I got my starter pack delivered today so this evening I decided to try my first roast. I put 90g of Guatamalen Huehue in my mistral popper with soup tin chimmney. I forgot to time when first crack occurred but by 4:30 I was in to second crack. I didnt realise it was quite so quick so I initially thought it was first crack but the beans were starting to go quite dark and smoke was starting to come out so I stopped the roast at 4:50.

    I then decided to try 100g of the Panamarian to see if I could get a lighter roast. About 2min into the roast my popper starting complaining loudly, I think I got a bean in the popper somehow so I got my brother to grab my cornelius popper and I quickly transferred them into that one and kept going. I stopped it at 6:50 somewhere between 1st and 2nd crack. These beans were much lighter. I was nearly worried that I had not done them enough but they started cracking when I poured them out of the popper into a sieve.

    The cornelius still had its standard plastic lid so I couldnt stir it but the beans were moving pretty fast and they actually came out more even than the first batch.

    My times seem quick compared to other peoples, even after having to swap poppers mid roast. Are these times normal? Obviously Ill keep experimenting but I need to drink some of the stuff Ive already roasted before having another go. Also, so that I can actually taste the difference between beans should I be stopping before 2nd crack or at 2nd crack?

  • #2
    Re: First roast, very quick

    should I be stopping before 2nd crack or at 2nd crack?
    That will vary depending on the bean and your tastes. Only enperimentation and your tastebuds will be able to answer that question.

    Java "Preferes the lighter roasts" phile
    Toys! I must have new toys!!!

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    • #3
      Re: First roast, very quick

      Steve- Im surprised by how much difference I used to get in the popper according to the ambient temperature- I checked your profile but couldnt find where you might be living.. :-/
      Perhaps you live in a warm area and that would speed up the process. I have done a 6 minute roast on a warm day and a 16 minute roast at night when it was 8 degrees outside. I am surprised that it went so quick for you with such a small amount of beans too- I find less beans means it takes longer because more beans get heat from each other eventually.
      If you havent tried it yet, you just have to try the heat gun roast in a SS collander. You can do huge batches if you like or small. You can vary the degree to shich you apply the gun and so extend the roast appropriately. Keep at it mate.

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      • #4
        Re: First roast, very quick

        Hi Rayzurhed,
        Im in Melbourne and I did the roast at night time. It was fairly cold outside.
        The second roast was definitely slower which was suprising given that I did them within 15 minutes of each other.
        I took a photo of the beans to compare their color.
        From left to right it is guat huehue, vittoria espresso from supermarket, panamarian.
        Im suprised at how much lighter the panamarian came out given they were roasted for 2 minutes longer than the huehue.

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        • #5
          Re: First roast, very quick

          Hi Steve,

          Those Guatemalan beans got quite dark! A bit too dark for me.

          Ive also been getting to rolling 1st crack at 3m30s and 2nd crack by 5m30s with 120g batches in my Tiffany/Mistral/B&D popper outdoors in Melbourne over the last few days. Tis all a bit too quick. I used to use this popper indoors in the middle of Summer, but with 75g batches and the roasts were a few minutes longer! Go figure. Batch size definitely makes a difference. I think the poppers are quite voltage sensitive too. I can slow down my roasts by simply having the coffee machine drawing power at the same time.

          Cheers,

          Rob

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          • #6
            Re: First roast, very quick

            DId a Pan Roast today with some Cuban Turquino that MattG sent me /TKS ..
            Hard to tell the first Crack in a Pan..
            I Assume these beans have some age? but they seem to have roasted fairly well. Apart from a Couple of Dark ones..
            They Seem to be Quite Crunchy for the Light Colour, Taste like they should make a Fair Cup, am Leaving these to rest for 2 days and will roast some tomorrow as well ..
            I had planned on using my Heat Gun but need to spend some serious time in the Garage finding It..
            I appologise for the image as my Nikonview seems to need Reloading and the PC probably needs more Ram, I will maybe try to run Images through my old IMAC, but that probably needs more Ram Also

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            • #7
              Re: First roast, very quick

              Tepin, those beans are very red...Hope its just the camera.

              Re Turbocharged roasts: I knew the Mistrals were beasts, but Ive never heard of them doing roasts in under 2 mins. You might have a fan problem, as most poppers do get at some point or another. Yours might have inherently failed a bit sooner than anticipated. If its still under warranty, I would suggest a replacement.

              Ambient conditions are a huge contributing factor to length of roasts in poppers. If youre not getting at least 5 mins out of a 90g in single digit temps, then theres something wrong with the popper. With full chimney and 150g of beans, Im still getting 4 minutes to first crack even at 30-35*C. With the current daytime high below 20*C, I need to run full batches in order to get the roast time under 8-10 minutes in my poppers.

              If youve only used it a few times to roast coffee, I would suggest getting it replaced.

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              • #8
                Re: First roast, very quick

                Gday Steve,

                Just wondering if you have the mandatory tall soup-tin chimney fitted to your Mistral? If not, it is definitely worth doing as this will allow you to increase your batch size, while still keeping the bean mass temperature in the correct region, seems to encourage a flue-like effect through the popper.

                Mal.

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                • #9
                  Re: First roast, very quick

                  On that note, I also found that some ventilation holes are helpful. Ive drilled a few (6-8) 5mm holes near the top of the popper, to draw some of the ambient air, not stuff at tabletop level. It does seem to help a touch, but not significantly. The first experiment was by accident of course, when the popper fell off the bench and broke a bit of the plastic near the top. While roasting, I noticed a fair bit of suction from the newly created opening. The holes are kept small to impact the pressure differential between the intake for the popper, and the ambient air. If the holes are too big, there is next to no suction.

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                  • #10
                    Re: First roast, very quick

                    Hi Nunu, had to play with the Image in Kodak Imaging as my Nikonview had a Dummyspit , Beans dont actually look that red , They were "Pan Roasted" on a Stovetop, I also had a Light on them and used Flash..
                    But did you notice the CS ?
                    As I said I have to spend some serious time in the Garage finding my Heat Gun..
                    Sadly its in my side and I have had to park my ute outside for the last 8 years..
                    Tepin

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