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Thread: First roast

  1. #1
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    First roast

    Gene Cafe Coffee Roaster $850 - Free Beans Free Freight
    Finally got the bits and pieces of my Corretto (mostly) together, just finished my first roast ever, 250g of Brazil Pulped Natural, pretty happy with how it looks cant wait to see how it tastes.

    Corretto is a Tiffany BM ($20 op shop pickup) and a cheap Ozito variable temperature HG (Bunnings ~$40), bean cooler is your standard issue Bunnings bucket-exhaust-fan-and-sieve job (thinking I need a second lid with a smaller sieve in it for smaller batches, current one is about right for 500g but you have to stir 250g quite a bit to get them cooled quickly), Ill post a photo next time Ive got it set up, one thing Ill say about Correttos though, theyre effective but damn are they noisy...

    Obligatory shot of freshly roasted beans with CS member card attached :)

    Pretty happy with this one, seems to be about CS9-10 first crack at 14:30 R1C at 17:05, pulled at what I think was the start of second crack (pull was somewhat forced by the 20 min max cycle on the BM, Ill mod it at some point to be free running (Yes, I am a qualified Electrical/Electronic Engineer), save waiting at the start too (pulsed for ~1min then continuous) in the mean time I think if I drop the HG a bit at the start Ill get to first crack a bit quicker which will give me more time to play with between first crack and second crack)


  2. #2
    Senior Member coffeechris's Avatar
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    Re: First roast

    hi Jbrewster,

    Not a bad effort for your first time, Its hard to tell from pictures sometimes but would you say its about a c10-c11 on the card?
    They can be a bit noisy when running the bread maker and HG, i dont run mine past about 9pm at night incase i annoy someone in the area(mind you i have had no complaints). The cost of setting up these corretto is pretty cheap and great to learn with.

    good job for a first try :)

    chris

  3. #3
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    Re: First roast

    Hi Chris,

    I think its closer to 10 than 11 the picture is a bit deceptive as I had to use a flash so the beans look shinier than they are.

    Yeah, I ran this roast in my garage, fortunately there is nobody living in the house on that side of mine at the moment, but if they eventually get some tenants in I shall have to curtail my late-night roasting.

  4. #4
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    Re: First roast

    They look good the beginning of second crack is a good staring point for roasting.

    It is suggested that a pause at about 150C will produce a different coffee because of the Maillard reaction.

    As long as you like it what everybody else thinks id secondary.

  5. #5
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    Re: First roast

    Thanks for the tip, Ill keep that in mind.

    Yeah, Im excited to try this lot but itll have to wait until Saturday morning, hopefully the result is good in the cup.

    First run has already taught me some things about my setup and thermal management, next run Ill have the HG closer to the bean mass, hopefully thatll speed up first crack a bit and give me more time to play with between first and second.

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    Re: First roast

    Second and third roasts, theyre both a bit shallow I think, I was running up against it with the 20 min max stir time on the Tiffany. Ive since modded it to run continuously.

    Second roast was the Colombian Volcan Galaras Supremo looks like a CS7, the colour in the photo is a bit off, its darker than it looks there, flash was a bit bright.
    Third was Peru Ceja de Selva looks to be about a CS7-8.

    Lost my TC about 2 mins into the Second roast so I dont have a temperature profile, Ive since adjusted my setup so that the TC will hopefully stay in the bean mass.




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    Re: First roast

    the third one with the peru looks pretty good, probably the lighter side for espresso, you may find the 2nd roast to be a bit acidic and citrusy from the lighter roast

    it may however work really well in a plunger or similar brewing method if you have one

    all up thats an effort to be proud of for you first 3 roasts

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    Re: First roast

    Theyre a bit darker than they appear in those photos, looking at it again in the flesh theyre more like CS8-9, the Peru is actually a touch lighter than the Colombian I think.

    Comparison shot attached (excuse my hideous handwriting), hopefully theyre OK for espresso but if not, Im sure I can dredge up a plunger from somewhere (or use it as an excuse to buy a syphon...) :) thanks again for the tips.

    Problem was mainly lighting I think, I pulled both at what I thought sounded like the start of second crack but they were a lot lighter in the cooler than they looked in the roaster, figure judging that is something that will come with experience.

    Upshot is with the new mod to the BM Im not limited to 19 mins max for a roast so if something takes a little longer than anticipated its not such a big deal.

    Thanks for the supportive comments too :) Ive another 17kg of greens on the way from Andy, I reckon by the time Im through that lot (and the ~3.5kg Ive already got) Ill have a much better feel for things :)


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    Re: First roast

    id say those should both be ok for espresso

    I usually end up with something from cs8 - cs10 and have found anything within those numbers to be suitable in my silvia

    id probably call yours cs8.5 to be picky, they look more suitable to espresso in that closer picture

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    Re: First roast

    Yeah, I figure theyre a bit on the light side, well see how they go in another day or so :)

    Roasting up some Ethiopian and perhaps some Decaf - Wow! tonight, well see how it goes post-mod on the BM.

  11. #11
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    Re: First roast

    have you actually tried them yet?

    (I cant see any mention of you trying them?)

    if its your first couple of roasts you may benefit from trying them each day to get a feel of what your tastes may be like since you are now roasting for yourself

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    Re: First roast

    Heh funny you should mention that, I was leaving them lie for a few days, tried them both as espresso last night, verdict is, the peru was nice and balanced, maybe a touch bright but that might moderate over the next couple of days, and the colombian was pretty smooth :)

    Oh and I tried the Brazil about three days post roast, its very non-descript, only really got "earthy" out of it probably a bit too dark (last I looked my beans were *very* oily)

    Im intending to keep sampling them over the next few days to see how the develop.

    As for the latest roasts;

    The Ethiopian is pretty varied colour-wise green, evened out a bit post roast but theres still a lot of variation there, certainly more than previous roasts so itll be interesting to see how it drinks (though I must say, Im not a fan of Ethiopians as SO, a bit acidic for my tastes, mainly intending to use it for blending).

    The Decaf - Wow was a *very* different roast, not sure if its due to the beans being decaf or what but I didnt get an audible first crack. That said, my ramp up was pretty slow so that might be it. Roasted by temperature not colour as Andy suggests, pulled the beans at 212 degrees and smoke.

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    Senior Member saoye's Avatar
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    Re: First roast

    Quote Originally Posted by 6E6676617377706176040 link=1339594096/9#9 date=1340002811
    Yeah, I figure theyre a bit on the light side, well see how they go in another day or so
    I dont think they are too light at all especially for the Peru, Columbian or Brazillian being quite mild and neutral beans. A lighter roast gives you more opportunity to taste the bean than the roast itself. I personally aim for CS9 for most of my roasts unless I know a particular bean would benefit from a deeper roast, like the Sumatran Lintong I have

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    Senior Member NakiChap's Avatar
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    Re: First roast

    Quote Originally Posted by 434B5B4C5E5A5D4C5B290 link=1339594096/11#11 date=1340241615
    I was leaving them lie for a few days, tried them both as espresso last night
    Hi there
    I generally roast to a CS9 and I only drink short blacks ,my wife drinks milk based, so I find the beans best from about day 7 post roast but ok from about day 4 if drinking milk based

    I roast about 550g of greens about 1 week in advance so I`m using beans from approx day 7-14 thats my personal sweet :P spot

    Cheers

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    Re: First roast

    Thanks guys, yeah, Im thinking CS9 is about the sweet spot for me (at least for espresso, with these beans) the lack of definition in the Brazil, Im pretty sure is due to it being a bit overdone, might roast up another batch tomorrow night and see how that goes.

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    Re: First roast

    I made an espresso with the Decaf - Wow last night.

    I was skeptical to begin with as the ground coffee looked extremely light. Pulled the shot, was rather concerned by how light the crema was, shot smelled fine though. To my pleasant surprise it drank *really* well, well balanced, good body, plenty of punch, the only negative is a pretty substantial bitterness in the finish, still very drinkable though and I reckon itll cut through milk like theres no tomorrow.

    Overall, pretty happy, maybe needs to be roasted a little deeper next time to temper the bitterness.

    On a related note, my flat sieve for the bean cooler arrived yesterday so that will make my life easier and should improve cooling significantly, I found that with the hemispherical sieve that most of the air went around the bean mass rather than through it and it took a lot of stirring (and several minutes) to cool the beans, being able to spread them in a flat layer covering all the space ought to help get my cooling times down.

    Also pleased to report the Tiffany BM is quite happy roasting 500gm batches.

  17. #17
    CoffeeSnobs Owner Andy's Avatar
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    Re: First roast

    Decaf is a strange beast to roast and for it to work in the cup it will typically appears quite dark.

    If the ground colour is light on the decaf then you dropped them a bit too early and you will prob taste sour (not bitter).* Bitter decaf will come much further into the colour scale.

    Keep plenty of notes and when you find the sweet spot you will be able to repeat it by profile style and end temperature not physical colour.

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    Re: First roast

    Quote Originally Posted by 1639332E570 link=1339594096/16#16 date=1340936565
    Decaf is a strange beast to roast
    That it most certainly is...

    As noted above it was a very weird roast, I never actually got an audible first crack (but the beans have certainly cracked) I suspect my ramp up was a bit too gentle, theyre really dense beans, pulled at 212C and smoke.

    Quote Originally Posted by 1639332E570 link=1339594096/16#16 date=1340936565
    If the ground colour is light on the decaf then you dropped them a bit too early and you will prob taste sour
    Yeah, that really surprised me, I was expecting it to be awful in the cup (the light crema reinforced that view) but to the nose it smelled fine, maybe a touch "grassy" (undertones of the smell of green beans), taste was surprisingly good, though I dont claim to have a particularly sophisticated pallate at this point Im 90% sure it was a bitter note I tasted (mostly came through when it hit the back of my tongue), Ill have some more tonight to confirm :)

    Like I say, really weird roast.

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    Re: First roast

    Behmor Coffee Roaster
    Roasted my first batch of decaf the other night, have tried it at one day and 2 days old, quite impressive as both espresso and long black.

    It is without doubt the ugliest green bean Ive seen yet, lots of misshapen and broken bits and some small beans that fell through the wire drum of the behmor.

    But what surprised me the most was the complete lack of chaff, I assume this is due to the process that removes the caffeine.

    So instead I just had some black soot-like material.

    A funny looking roast, nice and dark but more of a deep matte, not shiny at all.



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