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Thread: Another world opens up

  1. #1
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    Another world opens up

    Gene Cafe Coffee Roaster $850 - Free Beans Free Freight
    Well, after picking up a $15 heat gun the other day, I finally got around to doing my first couple of heat gun roasts. A nice windy day for it, which helped in winnowing the chaff away from the beans as they dropped through the air from colander to colander while cooling.

    Got to say Im impressed by the heating ability of the gun - its the XU1 with two heat settings. First crack only took about 7 minutes on the low setting with the nozzle 10-15 cm away from my small load of beans (around 180g). Im using a steamer saucepan set into a larger saucepan. Actually I was looking forward to a slightly longer roast time because Ive read that longer roast times bring out the best in beans.

    Its great being able to see, hear and smell all the action. Its a change from the popper and the Imex. Nice and quiet too.

    I stopped both roasts (Peru Kontiki & Yemen Mocha) not long after 1st crack, as I think the last few roasts I did in the Imex went too long for my liking (or perhaps didnt cool down quickly enough). Still learning and experimenting. Next time Ill hold the heat gun a bit further away from the beans but first have to get myself a longer spoon. The taste - even already today - is pretty good!

    I like it :)

    Merry Christmas everybody.

    Rob

  2. #2
    JR
    JR is offline
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    Re: Another world opens up

    Rob

    You should also consider increasing the batch size with your XU1. My standard roast volume is 300g but can easily double to 600g while still feeling in control of the roast. I find any less than 300g and the roast progresses too quickly and I am constantly trying to finesse the roast to perform as I desire. 300g is a good balance which allows me to easily roast quickly or slowly depending on what I am trying to achieve.

    What are other HG roasters using per batch?

    Cheers
    Dan

  3. #3
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    Re: Another world opens up

    Id agree with Dan, when I used the dogbowl I tried 350 and it worked well, and gave a very even roast.

    I"m still using the heatgun, but its mounted now. Im using 500g at a time and the roast takes about 20mins to get to 2nd crack.

  4. #4
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    Re: Another world opens up

    Quote Originally Posted by Dan link=1135415418/0#1 date=1135420495
    Rob

    You should also consider increasing the batch size with your XU1. *My standard roast volume is 300g but can easily double to 600g while still feeling in control of the roast. *I find any less than 300g and the roast progresses too quickly and I am constantly trying to finesse the roast to perform as I desire. *300g is a good balance which allows me to easily roast quickly or slowly depending on what I am trying to achieve.

    What are other HG roasters using per batch?

    Cheers
    Dan
    My av roast size is 800g, gotta use *a big bowl/colander to allow vigorous stirring. SS Pasta pot with modular strainer works well for me.

    Around 16 minutes to second crack, if I stir enough the beans are very even, if I get lazy I just say the variation is deliberate to add complexity ;)

  5. #5
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    Re: Another world opens up

    My average is 300gm. I have been using the higher heat setting on the gun so as to get to !st X as quickly as possible, usually about 5-6 min. then I use the lower setting to maintain the heat and if 2nd X has not happened by 13 min I go back to high heat to finish off, aiming for about a 15min roast.

    Bruce

  6. #6
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    Re: Another world opens up

    Thanks people - Good advice there. Ive increased to 300g batches and all is well. The roast time has extended a bit. I imagine 400g or thereabouts would give me perfect 18 minute roasts, but thats a bit too much coffee for me per roast. I guess I could always hold the HG a bit further away but then I wouldnt be able to rest it on the edge of the pot.

    Is the general consensus to ramp up the heat at the end? Every roast profile Ive seen seems to suggest this.

    Rob


  7. #7
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    Re: Another world opens up

    Mostly I think the roasting curves level off? So you get to first crack on the higher heats, then you let it coast into 2nd (if you want to take it that far, I mostly prefer a city - full city personally)

    Ive got to remember to ramp the gun down to the low heat setting on first crack sometime, see how that works out. Also Ive gotta get a propper thermometer to do some roast curves.

    Currently Im musing over a sample roaster like Sharkboy.

  8. #8
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    Re: Another world opens up

    Behmor Coffee Roaster
    Roasting curves often plateau well before 1st crack. The bit before 1st crack is where you really want to ramp it up, then extending the roast through 1st and into 2nd crack. Youre better off keeping the heat fairly constant, if not slightly lower to increase the complexity in the roast.



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